For a set of data with the number of groups = 4 and the total N = 400, the expected frequency (f_e) for each group is equal to ______.

Question

Quizplus · Accepted Answer

If the total N is 400 and there are 4 groups, then each group consists of 100 cases (N/number of groups). Since the expected frequency is the same for all groups, it is simply the total expected frequency (f_e) divided by the number of groups: f_e/4 = (400*1/4) = 100. Therefore, the answer is C, 100.

For a Set of Data with the Number of Groups