A study of 4000 Dell PC customers listed the age of the customer among other variables.The youngest customer was 14 years old and the oldest customer was 84 years old.If analysts for the company wish to develop a frequency distribution with 7 classes,the smallest value that the class width can be is 10 years.

Question

Quizplus · Accepted Answer

The range of ages is 84-14=70. 
To create 7 classes with equal width, we can divide the range by 7: 
70/7=10 
Therefore, the smallest class width can be 10 years.

A Study of 4000 Dell PC Customers Listed the Age