A common rule of thumb for determining how many classes to use when developing a frequency distribution with classes is:
A) between 5 and 20 classes.
B) no fewer than 6 classes.
C) equal to 0.25 times the number of data values.
D) at least 10 classes.

Question

Quizplus · Accepted Answer

The rule of thumb for determining the number of classes for a frequency distribution suggests using between 5 and 20 classes to balance detail and comprehensibility.

A Common Rule of Thumb for Determining How Many Classes