The class interval is the:
A) number of categories of the frequency distribution.
B) number of data values falling within each class.
C) lower and upper limits of each class.
D) width of each class.
E) mid-point of each class.

Question

Quizplus · Accepted Answer

The class interval is the width of each class, which is determined by the difference between the lower and upper limits. A frequency distribution can have multiple categories, but the class interval specifically refers to the size of each group of data values. The number of data values falling within each class and the mid-point of each class are related to the class interval, but do not define it.

The Class Interval Is The