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The five number summary
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Minimum, Q1, Median, Q3, Maximum
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Outlier
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Observations that lie outside the overall pattern of a distribution.
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Median
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The middle of an ordered set of data
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Range
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The difference between the highest and lowest terms of a set of data
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Interquartile range
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Q3 - Q1
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Variance
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Is the average of the squares of the deviations of the observations from their mean...also the square of the standard deviation.
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Standard deviation
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Measures spread by looking at how far the observations are from the mean
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