Chapter 1.2, Problem 73E

To determine

The comparison of histograms of salaries of Yankees and Phillies.

Explanation of Solution

Given:The data distribution of salaries of Yankees and Phillies as shown below

  

The data distribution of salaries of Yankees range from 0 - 5 million’s to 35 - 40 million’s. The shape of the distribution is skewed to right and there is gap between class interval’s 20 − 25 and 35 − 40 million’s, so this will be an outlier.

The data distribution of salaries of Phillies range from 0 − 2 million’s to 14 − 16 million’s. The shape of the distribution is skewed to right.

Here the class intervals in horizontal axis of salaries of Yankees are different when compared to that of Phillies. Yankees have class intervals 0 − 5, 5 − 10, 10 − 15, 15 − 20, 20 − 25, 25 − 30, 30 − 35, 35 − 40. Phillies have class intervals 0 − 2, 2 − 4, 4 − 6, 6 − 8, 8 − 10, 10 − 12, 12 − 14, 14 − 16.

When the class intervals are different we cannot use these two histograms effectively and make conclusions.