The following histogram represents the number of pages in each book within a collection. What is the frequency of books containing at least 250 but fewer than 400 pages?
A) 7
B) 10
C) 11
D) 12

Question

The following histogram represents the number of pages in each book within a collection. What is the frequency of books containing at least 250 but fewer than 400 pages? 
A) 7 
B) 10 
C) 11 
D) 12

Quizplus · Accepted Answer

To find the frequency of books containing at least 250 but fewer than 400 pages, we need to add up the heights of the bars corresponding to the range of 250-399. We can see that there are 11 bars in this range, which means there are 11 books with 250-399 pages. Therefore, the frequency is 11.

The Following Histogram Represents the Number of Pages in Each