This math skill teaches how to calculate the mean, median, mode, and range of a set of numbers. It explains the processes of finding average, middle value, most frequent value, and difference between highest and lowest values in a dataset.
Find the mean, median, mode, and range of a group of numbers
Test your understanding of mean, median, mode, and range by practicing it! Work through the below exercises to use it in practice.
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Let's find the mean, median, mode, and range of the number of shapes in these groups
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The mean, or average, is the number in each group if you divide them up evenly
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We have 12 in total and 4 groups to divide them amongst
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So our mean is 3
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The median is the middle number if the numbers are arranged in order
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We have 1, 2, 2, and 7. Since there's no middle number we go half way in between the two closest to the middle.
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They are both 2, so our median is 2.
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The mode is the number that occurs most frequently
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We have two with 2
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So our mode is 2
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And the range is the difference between top and bottom
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That's 1 and 7 in our case
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So our range is 7 minus 1, which is 6.