WEBVTT

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Here is the problem: Data: 11, 8, 20, 6, 28, 10, 18.

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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 7 values (odd), the median is value number 4.

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

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Range: largest minus smallest.

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So the answer is Mean equals 14.42857143; Median equals 11; Mode equals no mode; Range equals 22.

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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 101 equals mean times n equals 14.42857143 times 7 equals 101.