Question

what are the more appropriate measures of center and spread for this data set? select two choices: one for the center and one for the spread. a. better measure of spread: the interquartile range (iqr) b. better measure of spread: the standard deviation c. better measure of center: the mean d. better measure of center: the median

Explanation:

• For center: The median is a better measure of center for skewed data (as indicated by the box - plot). The mean is affected by outliers.
• For spread: The inter - quartile range (IQR) is a better measure of spread for skewed data. The standard deviation is sensitive to outliers.

Answer:

A. Better measure of spread: the interquartile range (IQR)
D. Better measure of center: the median