In the calculation of a mean for grouped data,___________ and ___________ are used.
A)Total sample size,sum of the midpoints of each class
B)Total sample size,sum of the weighted midpoints
C)Sum of the frequency of each class,the sum of the midpoints of each class
D)Sum of the frequency of each class,the sample midpoint

Question

Quizplus · Accepted Answer

In the calculation of a mean for grouped data, the weighted midpoints are used where each midpoint is multiplied by its corresponding frequency and then adding up all the products. The total sum of the products is divided by the total sample size to get the mean. Therefore, option B is the correct choice.

In the Calculation of a Mean for Grouped Data,___________ and ___________

In the Calculation of a Mean for Grouped Data,_ and _