A CFO is looking at what percentage of a company's resources are spent on computing. He samples companies in the pharmaceutical industry and develops the following stem-and-leaf display (leaf unit = 0.1). If you were creating a frequency histogram using these data, how many classes would you create?
A) 4
B) 5
C) 6
D) 7
E) 8

Question

A CFO is looking at what percentage of a company's resources are spent on computing. He samples companies in the pharmaceutical industry and develops the following stem-and-leaf display (leaf unit = 0.1).  If you were creating a frequency histogram using these data, how many classes would you create?
A) 4 
B) 5 
C) 6 
D) 7 
E) 8

Quizplus · Accepted Answer

There are 50 data measurements. 2^k, where k = number of classes and 2^k is the closest value larger than 50. 2⁶ = 64.

A CFO Is Looking at What Percentage of a Company's