WEBVTT

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Here is the problem: Data: 7, 1, 3.

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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 3 values (odd), the median is value number 2.

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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.

8
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So the answer is Mean equals 3.666666667; Median equals 3; Mode equals no mode; Range equals 6.

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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.

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Sum 11 equals mean times n equals 3.666666667 times 3 equals 11.