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# "Best" Measures

If a data set has an outlier, what is the best measure of spread? Interquartile Range
If a data set has an outlier, what is the best measure of center? Median
If a data set has a strong skew, what is the best measure of spread? Interquartile Range
If a data set has a strong skew, what is the best measure of center? Median
If a data set is symmetric, what is the best measure of center? Mean
If a data set is symmetric, what is the best measure of spread? Standard Deviation
What are the common measures of center? Mean and Median
What are the common measure of spread? Standard Deviation and Interquartile Range
What are the common measures of shape? Symmetry and Skew
Created by: Dhiller
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