Here are box plots that summarize the heights of 20 professional athletes in basketball, football, hockey, and baseball.

<p>Four box plots from 65 to 90 by 5's. Height in inches. Labeled basketball, football, hockey, baseball. Top box plot labeled basketball. Whisker from 67 point 3 to 76 point 1.Box from 76 point 1 to 80 point 3 with vertical line at 78 point 5. Whisker from 80 point 3 to 91 point 1. Next box plot labeled football. Whisker from 66 point 1 to 70 point 1. Box from 70 point 1 to 75 point 1 with vertical line at 73 point 8. Whisker from 75 point 1 to 77 point 9. Next box plot labeled hockey. Whisker from 68 point 8 to 72. Box from 72 to 75 with vertical line at 73 point 1. Whisker from 75 to 76 point 8. Bottom box plot labeled baseball. Whisker from 70 to 72. Box from 72 to 74 point 5 with vertical line at 72 point 8. Whisker from 74 point 5 to 76 point 2.</p>  

1. In which two sports are the players’ height distributions most alike? Explain your reasoning.
2. Which sport shows the greatest variability in players’ heights? Which sport shows the least variability?

Here is a box plot that summarizes data for the time, in minutes, that a fire department takes to respond to 100 emergency calls. 

Pineapples are packed in 3 large crates. For each crate, the weight of every pineapple in the crate is recorded. Here are three box plots that summarize the weights in each crate.

<p>Three box plots, weight in pounds, 1 to 7 by ones.  Crate 1, whisker from 1 point 5 to 3 point 2 5, box from 3 point 2 5 to 4 point 6 with a vertical line at 4, whisker from 4 point 6 to 6. Crate 2, whisker from point 7 5 to 1 point 2 5, box from 1 point 2 5 to 2 point 2 5 with a vertical line at 2, whisker from 2 point 2 5 to 3 point 4.  Crate 3, whisker from 2 point 7 to 3 point 6, box from 3 point 6 to 4 point 4 with a vertical line at 4 point 1, whisker from 4 point 4 to 5 point 1.</p>  

Select all of the statements that are true, according to the box plots.

Producers of 2 TV shows ask 100 viewers for their ages. For one show, the mean age of the viewers is 35 years and the MAD is 20 years. For the other show, the mean age of the viewers is 30 years and the MAD is 5 years.

A sixth-grade student says he watches one of the shows. Which show do you think he watches? Explain your reasoning.