In the calculation of the arithmetic mean for grouped data, which value is used to represent all the values in a particular class?
A) The upper limit of the class
B) The lower limit of the class
C) The frequency of the class
D) The cumulative frequency preceding the class
E) None of the choices are correct.

Question

Quizplus · Accepted Answer

The midpoint (or class mark) of the class is used to represent all the values in a particular class when calculating the arithmetic mean for grouped data. None of the given choices correctly identify this.

In the Calculation of the Arithmetic Mean for Grouped Data