Question

refer to the accompanying boxplots that are drawn on the same scale. the top boxplot represents weights (kg) of a sample of male u.s. army personnel in 1987, and the bottom boxplot represents weights (kg) of a sample of male u.s. army personnel in 2015. what story is told by these boxplots? click the icon to view the boxplots. choose the correct answer below. a. it appears that weights of u.s. army males did not change from 1987 to 2015. b. it appears that weights of u.s. army males decreased from 1987 to 2015. c. it appears that weights of u.s. army males both increased and decreased from 1987 to 2015. d. it appears that weights of u.s. army males increased from 1987 to 2015.

Explanation:

In a box - plot, the median is represented by the line inside the box. If we compare the two box - plots (1987 and 2015), we observe that the median of the 2015 box - plot is higher than the median of the 1987 box - plot. Also, looking at the overall spread (from the minimum to the maximum values), the 2015 box - plot has higher values in general.

Answer:

D. It appears that weights of U.S. Army males increased from 1987 to 2015.