Illustrative Math Alignment: Grade 7 Unit 8
Probability and Sampling
Lesson 15: Estimating Population Measures of Center
Use the following Media4Math resources with this Illustrative Math lesson.
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Math Example--Measures of Central Tendency--Median: Example 27 | Math Example--Measures of Central Tendency--Median: Example 27TopicMeasures of Central Tendency DescriptionThis example illustrates the process of finding the median for the set of numbers: 3, -43, 39, 29, 0, -23, 16, -35, 3, 32, -45, 2, -50, 7, 40, 24. The solution involves arranging the numbers from least to greatest and then identifying the middle value. With an even number of terms, the median is calculated as the average of the two middle terms, resulting in a median of 3. |
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Math Example--Measures of Central Tendency--Median: Example 28 | Math Example--Measures of Central Tendency--Median: Example 28TopicMeasures of Central Tendency DescriptionThis example demonstrates finding the median of the following set of numbers: 21, 49, 40, -39, 47, 25, 13, -35, -4, 1, 13, 1, 14, -34, -15, -12. The solution involves arranging the numbers from least to greatest and then identifying the middle value. With an even number of terms, the median is calculated as the average of the two middle terms, resulting in a median of 7. |
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Math Example--Measures of Central Tendency--Median: Example 29 | Math Example--Measures of Central Tendency--Median: Example 29TopicMeasures of Central Tendency DescriptionThis example illustrates the process of finding the median for the set of numbers: 26, 26, 22, 2, 25, 1, 40, 41, 26, 49, 13, 27, 30, 34, 23, 39, 6. The solution involves arranging the numbers from least to greatest and then identifying the middle value. With an odd number of terms, the median is simply the middle number after sorting, which is 26. |
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Math Example--Measures of Central Tendency--Median: Example 3 | Math Example--Measures of Central Tendency--Median: Example 3TopicMeasures of Central Tendency DescriptionThis example demonstrates finding the median of the following set of numbers: 48, -6, -6, 28, 2, -37, -36, -34. The solution involves arranging the numbers from least to greatest and then identifying the middle value. With an even number of terms, the median is calculated as the average of the two middle terms, resulting in a median of -6. |
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Math Example--Measures of Central Tendency--Median: Example 30 | Math Example--Measures of Central Tendency--Median: Example 30TopicMeasures of Central Tendency DescriptionThis example demonstrates finding the median of the following set of numbers: 20, 30, 17, -36, 26, 6, 8, -30, -21, 0, 42, -19, -34, 39, 6, -18, 24. The solution involves arranging the numbers from least to greatest and then identifying the middle value. With an odd number of terms, the median is simply the middle number after sorting, which is 6. |
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Math Example--Measures of Central Tendency--Median: Example 31 | Math Example--Measures of Central Tendency--Median: Example 31TopicMeasures of Central Tendency DescriptionThis example illustrates the process of finding the median for the set of numbers: 13, 33, 13, 4, 6, 0, 28, 0, 26, 8, 8, 27, 12, 33, 16, 48, 9, 22. The solution involves arranging the numbers from least to greatest and then identifying the middle value. With an even number of terms, the median is calculated as the average of the two middle terms, resulting in a median of 13. |
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Math Example--Measures of Central Tendency--Median: Example 32 | Math Example--Measures of Central Tendency--Median: Example 32TopicMeasures of Central Tendency DescriptionThis example demonstrates finding the median of the following set of numbers: 50, 5, 24, 10, 11, 0, 42, 26, 13, 44, 0, 28, 25, 44, 12, 33, 8, 39. The solution involves arranging the numbers from least to greatest and then identifying the middle value. With an even number of terms, the median is calculated as the average of the two middle terms, resulting in a median of 24.5. |
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Math Example--Measures of Central Tendency--Median: Example 33 | Math Example--Measures of Central Tendency--Median: Example 33TopicMeasures of Central Tendency DescriptionThis example illustrates the process of finding the median for the set of numbers: -22, 30, -39, 46, 50, 27, -42, -15, 15, -14, 47, -31, 21, -2, -27, -9, -22, -9. The solution involves arranging the numbers from least to greatest and then identifying the middle value. With an even number of terms, the median is calculated as the average of the two middle terms, resulting in a median of -4.5. |
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Math Example--Measures of Central Tendency--Median: Example 34 | Math Example--Measures of Central Tendency--Median: Example 34TopicMeasures of Central Tendency DescriptionThis example demonstrates finding the median of the following set of numbers: -4, -44, 24, -48, 35, -3, 50, 34, -32, 42, 11, 22, -49, -4, -31, 41, 30, 17. The solution involves arranging the numbers from least to greatest and then identifying the middle value. With an even number of terms, the median is calculated as the average of the two middle terms, resulting in a median of 14. |
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Math Example--Measures of Central Tendency--Median: Example 35 | Math Example--Measures of Central Tendency--Median: Example 35TopicMeasures of Central Tendency DescriptionThis example illustrates the process of finding the median for the set of numbers: 48, 49, 21, 10, 20, 20, 44, 41, 5, 35, 48, 35, 4, 17, 15, 8, 16, 22, 39. The solution involves arranging the numbers from least to greatest and then identifying the middle value. With an odd number of terms, the median is simply the middle number after sorting, which is 21. |
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Math Example--Measures of Central Tendency--Median: Example 36 | Math Example--Measures of Central Tendency--Median: Example 36TopicMeasures of Central Tendency DescriptionThis example demonstrates finding the median of the following set of numbers: 20, -35, 22, 1, -42, -7, 15, -12, 25, 39, 17, 16, -42, -28, -27, -19, 48, 25, -43. The solution involves arranging the numbers from least to greatest and then identifying the middle value. With an odd number of terms, the median is simply the middle number after sorting, which is 1. |
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Math Example--Measures of Central Tendency--Median: Example 37 | Math Example--Measures of Central Tendency--Median: Example 37TopicMeasures of Central Tendency DescriptionThis example illustrates the process of finding the median for the set of numbers: 3, 1, 4, 2, 5. The solution involves arranging the numbers from least to greatest and then identifying the middle value. With an odd number of terms, the median is simply the middle number after sorting, which is 3. |
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Math Example--Measures of Central Tendency--Median: Example 38 | Math Example--Measures of Central Tendency--Median: Example 38TopicMeasures of Central Tendency DescriptionThis example demonstrates finding the median of the following set of numbers: 3, 5, 1, 4, 2. The solution involves arranging the numbers from least to greatest and then identifying the middle value. With an odd number of terms, the median is simply the middle number after sorting, which is 3. |
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Math Example--Measures of Central Tendency--Median: Example 39 | Math Example--Measures of Central Tendency--Median: Example 39TopicMeasures of Central Tendency DescriptionThis example illustrates the process of finding the median for the set of numbers: 2, 5, 7, 10, 12. The solution involves arranging the numbers from least to greatest and then identifying the middle value. With an odd number of terms, the median is simply the middle number after sorting, which is 7. |
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Math Example--Measures of Central Tendency--Median: Example 4 | Math Example--Measures of Central Tendency--Median: Example 4TopicMeasures of Central Tendency DescriptionThis example illustrates the process of finding the median for the set of numbers: 13, -20, 4, -4, -43, 46, -17, -19. The solution involves arranging the numbers from least to greatest and then identifying the middle value. With an even number of terms, the median is calculated as the average of the two middle terms, resulting in a median of -10/5 or -2. |
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Math Example--Measures of Central Tendency--Median: Example 40 | Math Example--Measures of Central Tendency--Median: Example 40TopicMeasures of Central Tendency DescriptionThis example demonstrates the general process of finding the median for a set of numbers. The solution involves arranging the numbers from least to greatest and then identifying the middle value. The procedure differs slightly depending on whether there is an odd or even number of terms in the dataset. |
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Math Example--Measures of Central Tendency--Median: Example 5 | Math Example--Measures of Central Tendency--Median: Example 5TopicMeasures of Central Tendency DescriptionThis example demonstrates how to find the median of the following set of numbers: 49, 3, 27, 46, 7, 32, 21, 33, 33. The process involves arranging the numbers from least to greatest and then identifying the middle value. In this case, with an odd number of terms, the median is simply the middle number after sorting, which is 32. |
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Math Example--Measures of Central Tendency--Median: Example 6 | Math Example--Measures of Central Tendency--Median: Example 6TopicMeasures of Central Tendency DescriptionThis example illustrates the process of finding the median for the set of numbers: 15, 24, -6, -16, 50, 12, -50, 43, 35. The solution involves arranging the numbers from least to greatest and then identifying the middle value. With an odd number of terms, the median is simply the middle number after sorting, which in this case is 15. |
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Math Example--Measures of Central Tendency--Median: Example 7 | Math Example--Measures of Central Tendency--Median: Example 7TopicMeasures of Central Tendency DescriptionThis example demonstrates finding the median of the following set of numbers: 23, 30, 9, 34, 13, 40, 26, 30, 45, 36. The solution involves arranging the numbers from least to greatest and then identifying the middle value. With an even number of terms, the median is calculated as the average of the two middle terms, resulting in a median of 30. |
Data Analysis |
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Math Example--Measures of Central Tendency--Median: Example 8 | Math Example--Measures of Central Tendency--Median: Example 8TopicMeasures of Central Tendency DescriptionThis example demonstrates how to find the median of the following set of numbers: 50, 14, 47, 43, 25, 10, 18, 21, 20, 19. The process involves arranging the numbers in ascending order and then identifying the middle value. With an even number of terms, the median is calculated as the average of the two middle terms, resulting in a median of 20.5. |
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Math Example--Measures of Central Tendency--Median: Example 9 | Math Example--Measures of Central Tendency--Median: Example 9TopicMeasures of Central Tendency DescriptionThis example illustrates the process of finding the median for the set of numbers: 13, -3, 23, -20, -14, -32, -31, -21, 36, -14. The solution involves arranging the numbers from least to greatest and then identifying the middle value. With an even number of terms, the median is calculated as the average of the two middle terms, resulting in a median of -14. |
Data Analysis |
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Math Example--Measures of Central Tendency--Mode: Example 1 | Math Example--Measures of Central Tendency--Mode: Example 1TopicMeasures of Central Tendency DescriptionThis example showcases a situation of measures of central tendency, where the goal is to identify a key summary measure in a set of data. The image shows a set of numbers with an example of finding the mode. The numbers are arranged from least to greatest, and it concludes that there is no mode. The example demonstrates that in some cases, a data set may not have a mode when no number appears more than once. |
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Math Example--Measures of Central Tendency--Mode: Example 10 | Math Example--Measures of Central Tendency--Mode: Example 10TopicMeasures of Central Tendency DescriptionThis example showcases a situation of measures of central tendency, where the goal is to identify a key summary measure in a set of data. The image presents an example where no mode is found in a set of numbers after sorting them from least to greatest. This demonstrates that not all data sets have a mode, particularly when each number in the set appears only once. |
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Math Example--Measures of Central Tendency--Mode: Example 11 | Math Example--Measures of Central Tendency--Mode: Example 11TopicMeasures of Central Tendency DescriptionThis example showcases a situation of measures of central tendency, where the goal is to identify a key summary measure in a set of data. The image demonstrates finding the mode by arranging numbers in order and identifying the most frequent number. After sorting, it becomes clear that 48 appears twice, while all other numbers appear only once, making 48 the mode of this data set. |
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Math Example--Measures of Central Tendency--Mode: Example 12 | Math Example--Measures of Central Tendency--Mode: Example 12TopicMeasures of Central Tendency DescriptionThis example showcases a situation of measures of central tendency, where the goal is to identify a key summary measure in a set of data. The image shows an example with multiple modes after sorting a list of numbers and highlighting those that appear most often. After arranging the numbers from least to greatest, it becomes evident that both 26 and 32 appear twice, while all other numbers appear only once. This demonstrates that a data set can have more than one mode. |
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Math Example--Measures of Central Tendency--Mode: Example 13 | Math Example--Measures of Central Tendency--Mode: Example 13TopicMeasures of Central Tendency DescriptionThis example showcases a situation of measures of central tendency, where the goal is to identify a key summary measure in a set of data. The image shows a set of numbers with instructions to find the mode. The numbers are arranged from least to greatest, and "No Mode" is indicated. This example reinforces the concept that not all data sets have a mode, particularly when each number in the set appears only once. |
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Math Example--Measures of Central Tendency--Mode: Example 14 | Math Example--Measures of Central Tendency--Mode: Example 14TopicMeasures of Central Tendency DescriptionThis example showcases a situation of measures of central tendency, where the goal is to identify a key summary measure in a set of data. The image presents a set of numbers with instructions to find the mode. The numbers are sorted, and the mode is highlighted as 25. This example demonstrates how to identify the mode when a number appears more frequently than others in a data set. |
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Math Example--Measures of Central Tendency--Mode: Example 15 | Math Example--Measures of Central Tendency--Mode: Example 15TopicMeasures of Central Tendency DescriptionThis example showcases a situation of measures of central tendency, where the goal is to identify a key summary measure in a set of data. The image displays a set of numbers with instructions to find the mode. Numbers are arranged in order with modes highlighted as 19 and 24. This example illustrates that a data set can have more than one mode, which occurs when two or more numbers appear with the highest frequency. |
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Math Example--Measures of Central Tendency--Mode: Example 16 | Math Example--Measures of Central Tendency--Mode: Example 16TopicMeasures of Central Tendency DescriptionThis example showcases a situation of measures of central tendency, where the goal is to identify a key summary measure in a set of data. The image shows a set of numbers with instructions to find the mode. The numbers are arranged in order and "No Mode" is indicated. This example reinforces the concept that not all data sets have a mode, particularly when each number in the set appears only once. |
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Math Example--Measures of Central Tendency--Mode: Example 17 | Math Example--Measures of Central Tendency--Mode: Example 17TopicMeasures of Central Tendency DescriptionThis example showcases a situation of measures of central tendency, where the goal is to identify a key summary measure in a set of data. The image shows a math example finding the mode of a set of numbers. The numbers are arranged from least to greatest, and the mode is highlighted. This example demonstrates how to identify the mode when a number appears more frequently than others in a data set that includes both positive and negative numbers. |
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Math Example--Measures of Central Tendency--Mode: Example 18 | Math Example--Measures of Central Tendency--Mode: Example 18TopicMeasures of Central Tendency DescriptionThis example showcases a situation of measures of central tendency, where the goal is to identify a key summary measure in a set of data. This image illustrates finding the mode of a set. The numbers are sorted and two modes are identified and highlighted. This example demonstrates that a data set can have multiple modes, even when it contains both positive and negative numbers. |
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Math Example--Measures of Central Tendency--Mode: Example 19 | Math Example--Measures of Central Tendency--Mode: Example 19TopicMeasures of Central Tendency DescriptionThis example showcases a situation of measures of central tendency, where the goal is to identify a key summary measure in a set of data. The image shows a set of numbers with no mode. The numbers are arranged in ascending order to demonstrate that no number repeats. This example reinforces the concept that not all data sets have a mode, particularly when each number in the set appears only once. |
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Math Example--Measures of Central Tendency--Mode: Example 2 | Math Example--Measures of Central Tendency--Mode: Example 2TopicMeasures of Central Tendency DescriptionThis example showcases a situation of measures of central tendency, where the goal is to identify a key summary measure in a set of data. The image presents a set of numbers with an example of finding the mode. The numbers are sorted, showing that the mode is 14. This example illustrates how to identify the mode when a number appears more frequently than others in a data set. |
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Math Example--Measures of Central Tendency--Mode: Example 20 | Math Example--Measures of Central Tendency--Mode: Example 20TopicMeasures of Central Tendency DescriptionThis example showcases a situation of measures of central tendency, where the goal is to identify a key summary measure in a set of data. This image displays a math example where the mode is found by sorting the numbers and identifying the most frequent one. After arranging the numbers from least to greatest, it becomes clear that 0 appears twice, while all other numbers appear only once, making 0 the mode of this data set. |
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Math Example--Measures of Central Tendency--Mode: Example 21 | Math Example--Measures of Central Tendency--Mode: Example 21TopicMeasures of Central Tendency DescriptionThis example showcases a situation of measures of central tendency, where the goal is to identify a key summary measure in a set of data. This image shows Example 21, focusing on finding the mode of a set of numbers. The numbers are listed in random order and then sorted from least to greatest. The mode is highlighted in red, demonstrating how to identify the mode when a number appears more frequently than others in a data set. |
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Math Example--Measures of Central Tendency--Mode: Example 22 | Math Example--Measures of Central Tendency--Mode: Example 22TopicMeasures of Central Tendency DescriptionThis example showcases a situation of measures of central tendency, where the goal is to identify a key summary measure in a set of data. This image shows Example 22, which involves finding the mode of a set of numbers. The numbers are sorted from least to greatest, but no number repeats more than once, indicating no mode. This example reinforces the concept that not all data sets have a mode, particularly when each number in the set appears only once. |
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Math Example--Measures of Central Tendency--Mode: Example 23 | Math Example--Measures of Central Tendency--Mode: Example 23TopicMeasures of Central Tendency DescriptionThis example showcases a situation of measures of central tendency, where the goal is to identify a key summary measure in a set of data. This image shows Example 23 with a set of numbers where the mode is determined by sorting and identifying the most frequent number. The mode is highlighted in red, demonstrating how to identify the mode when a number appears more frequently than others in a data set that includes both positive and negative numbers. |
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Math Example--Measures of Central Tendency--Mode: Example 24 | Math Example--Measures of Central Tendency--Mode: Example 24TopicMeasures of Central Tendency DescriptionThis example showcases a situation of measures of central tendency, where the goal is to identify a key summary measure in a set of data. This image shows Example 24 with a set of numbers where two modes are identified after sorting. Both modes are highlighted in red, demonstrating that a data set can have multiple modes, even when it contains both positive and negative numbers. |
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Math Example--Measures of Central Tendency--Mode: Example 25 | Math Example--Measures of Central Tendency--Mode: Example 25TopicMeasures of Central Tendency DescriptionThis example showcases a situation of measures of central tendency, where the goal is to identify a key summary measure in a set of data. The image shows a math example focused on finding the mode of a set of numbers. The numbers are arranged in ascending order, and it is highlighted that there is no mode in this data set. This example reinforces the concept that not all data sets have a mode, particularly when each number in the set appears only once. |
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Math Example--Measures of Central Tendency--Mode: Example 26 | Math Example--Measures of Central Tendency--Mode: Example 26TopicMeasures of Central Tendency DescriptionThis example showcases a situation of measures of central tendency, where the goal is to identify a key summary measure in a set of data. This image provides a math example on finding the mode of a number set. The numbers are sorted in order with the mode (2) highlighted as it appears most frequently. This demonstrates how to identify the mode when a number appears more frequently than others in a data set. |
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Math Example--Measures of Central Tendency--Mode: Example 27 | Math Example--Measures of Central Tendency--Mode: Example 27TopicMeasures of Central Tendency DescriptionThis example showcases a situation of measures of central tendency, where the goal is to identify a key summary measure in a set of data. The image illustrates a math problem about determining the mode from a list of numbers. The sorted list shows two modes (23 and 24) highlighted as they appear most frequently. This demonstrates that a data set can have more than one mode, which occurs when two or more numbers appear with the highest frequency. |
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Math Example--Measures of Central Tendency--Mode: Example 28 | Math Example--Measures of Central Tendency--Mode: Example 28TopicMeasures of Central Tendency DescriptionThis example showcases a situation of measures of central tendency, where the goal is to identify a key summary measure in a set of data. This image depicts an example where students are tasked to find the mode in a number sequence. After sorting the numbers in order it is shown that there is no mode present in this set. This example reinforces the concept that not all data sets have a mode, particularly when each number in the set appears only once. |
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Math Example--Measures of Central Tendency--Mode: Example 29 | Math Example--Measures of Central Tendency--Mode: Example 29TopicMeasures of Central Tendency DescriptionThis example showcases a situation of measures of central tendency, where the goal is to identify a key summary measure in a set of data. The numbers are listed, and a solution is provided below. This example demonstrates how to identify the mode when a number appears more frequently than others in a data set that includes both positive and negative numbers. |
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Math Example--Measures of Central Tendency--Mode: Example 3 | Math Example--Measures of Central Tendency--Mode: Example 3TopicMeasures of Central Tendency DescriptionThis example showcases a situation of measures of central tendency, where the goal is to identify a key summary measure in a set of data. This image illustrates a set of numbers with an example to find the mode. After sorting, it identifies two modes: 38 and 50. This example demonstrates that a data set can have more than one mode, which occurs when two or more numbers appear with the highest frequency. |
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Math Example--Measures of Central Tendency--Mode: Example 30 | Math Example--Measures of Central Tendency--Mode: Example 30TopicMeasures of Central Tendency DescriptionThis example showcases a situation of measures of central tendency, where the goal is to identify a key summary measure in a set of data. The image shows a math example labeled "Example 30" about finding the mode of a set of numbers. The numbers are listed, and a solution is provided below. This example demonstrates that a data set can have multiple modes, even when it contains both positive and negative numbers. |
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Math Example--Measures of Central Tendency--Mode: Example 31 | Math Example--Measures of Central Tendency--Mode: Example 31TopicMeasures of Central Tendency DescriptionThis example showcases a situation of measures of central tendency, where the goal is to identify a key summary measure in a set of data. The numbers are listed, and a solution is provided below. This example reinforces the concept that not all data sets have a mode, particularly when each number in the set appears only once. |
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Math Example--Measures of Central Tendency--Mode: Example 32 | Math Example--Measures of Central Tendency--Mode: Example 32TopicMeasures of Central Tendency DescriptionThis example showcases a situation of measures of central tendency, where the goal is to identify a key summary measure in a set of data. The numbers are listed, and a solution is provided below. This example demonstrates how to identify the mode when a number appears more frequently than others in a data set. |
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Math Example--Measures of Central Tendency--Mode: Example 33 | Math Example--Measures of Central Tendency--Mode: Example 33TopicMeasures of Central Tendency DescriptionThis example showcases a situation of measures of central tendency, where the goal is to identify a key summary measure in a set of data. The image shows an example problem asking to find the mode of a set of numbers. The numbers are listed and then rearranged from least to greatest. The mode is highlighted in red. This example demonstrates that a data set can have multiple modes, even when it contains both positive and negative numbers. |
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Math Example--Measures of Central Tendency--Mode: Example 34 | Math Example--Measures of Central Tendency--Mode: Example 34TopicMeasures of Central Tendency DescriptionThis example showcases a situation of measures of central tendency, where the goal is to identify a key summary measure in a set of data. The image presents a problem where the task is to find the mode of a given set of numbers. The numbers are arranged in order but no number appears more than once; hence there is no mode. This example reinforces the concept that not all data sets have a mode, particularly when each number in the set appears only once. |
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Math Example--Measures of Central Tendency--Mode: Example 35 | Math Example--Measures of Central Tendency--Mode: Example 35TopicMeasures of Central Tendency DescriptionThis example showcases a situation of measures of central tendency, where the goal is to identify a key summary measure in a set of data. The image displays a math example where a set of numbers is provided to find the mode. The numbers are sorted and the mode is highlighted in red as it appears multiple times in the list. This example demonstrates how to identify the mode when a number appears more frequently than others in a data set that includes both positive and negative numbers. |
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