WEBVTT

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Now we turn our attention to the numbers we can calculate to describe these distributions.

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These numbers can be grouped into two types of measures:

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Measures of Central Tendency and Measures of Variability.

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Measures of central tendency describe the middle, such as the mean and median

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or most frequent values of a distribution, such as the mode

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Measures of variability describe whether the values are spread out or clumped together.

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Low variability means that the numbers are all close to each other

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and high variability means the numbers are spread out from each other