If you are calculating the mean for scores that have been arranged into a simple frequency distribution, what additional step has to be taken?
A) ∑fX
B) ∑f
C) ∑cf
D) ∑N

Question

Quizplus · Accepted Answer

To calculate the mean for scores arranged into a simple frequency distribution, you multiply each score by its frequency (fX) and sum these products (∑fX), then divide by the total number of scores (∑f).

If You Are Calculating the Mean for Scores That Have