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"Best" Measures
| Question | Answer |
|---|---|
| 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 |