Chapter 4, Problem 39E

(a)

To determine

To Explain: on the basis of given histogram.

Explanation of Solution

Given:

  

By seeing the histogram, it is observed that the there are only 16 years from 1986 to 2001 (inclusive), which implies that there should be only 16 bars. Although, it is appears to be 18 bars in total.

(b)

To determine

To construct: the own histogram on the basis of given data.

Explanation of Solution

Given:

  

Graph:

  

On the basis of given histogram, plot the histogram which is not symmetric and there is only 16 bars according to years which is correct.