Chapter Test
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Which measures of center and variation should we use when the distribution of the data is skewed?
Distribution: Skewed right
Measures: Use the median to describe the center and the five-number summary to describe the variation.
We are asked to describe the distribution of the data and determine which measures of center and variation best represent the data. Since most of the data are on the left and the tail of the graph extends to the right, the distribution is skewed right. Therefore, we should use the median to describe the center and the five-number summary to describe the variation.