WEBVTT

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Here is the problem: Data: 10, 3, 7, 22.

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Measures of central tendency for a list of numbers.

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Sort the data from smallest to largest.

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Mean: add the values and divide by how many there are.

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Median: the middle value of the sorted list. With 4 values (even), the median is the average of values 2 and 3.

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Mode: the value(s) that appear most often. Every value appears exactly once, so there is no mode.

7
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Range: largest minus smallest.

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So the answer is Mean equals 10.5; Median equals 8.5; Mode equals no mode; Range equals 19.

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The mean balances all values, the median splits the sorted data in half and is less affected by outliers, and the mode is the most common value.

10
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Sum 42 equals mean times n equals 10.5 times 4 equals 42.