Collecting and Interpreting Data Question
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Grade 11 Collecting and Interpreting Data CCSS: HSS-ID.A.3
Which of the following statements is true, concerning the removal of a single outlier on the range, IQR, and standard deviation of any given data set?
- The IQR will usually be the least affected by the removal of an outlier.
- The standard deviation and IQR will usually be nearly equally affected by the removal of an outlier.
- The IQR will never be affected by the removal of an outlier.
- The greater the distance between the mean and the outlier, the greater the decrease in all three measures of spread after the outlier's removal.