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 lower limit of the class
B)the upper limit of the class
C)the frequency of the class
D)the midpoint of the class

Question

Quizplus · Accepted Answer

The midpoint of the class is used to represent all the values in a particular class in the calculation of the arithmetic mean for grouped data. This is because the midpoint is the value that represents the average of the upper and lower limits of the class, and is therefore the most representative value for the class.

In the Calculation of the Arithmetic Mean for Grouped Data,which