WEBVTT

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Here is the problem: Data: 3, 1, 4, 1, 5, 9, 2, 6.

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Measures of central tendency for a list of numbers.

3
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Sort the data from smallest to largest.

4
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Mean: add the values and divide by how many there are.

5
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Median: the middle value of the sorted list. With 8 values (even), the median is the average of values 4 and 5.

6
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Mode: the value(s) that appear most often. Most frequent: 1.

7
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Range: largest minus smallest.

8
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So the answer is Mean equals 3.875; Median equals 3.5; Mode equals 1; Range equals 8.

9
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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 31 equals mean times n equals 3.875 times 8 equals 31.