The relative frequency of a class is computed by dividing the

A) midpoint of the class by the sample size.
B) frequency of the class by the midpoint.
C) sample size by the frequency of the class.
D) frequency of the class by the sample size.

The relative frequency of a class is computed by dividing the frequency of the class by the sample size. This gives a proportion or percentage of how many times the class occurred within the total sample. Option A is incorrect as the midpoint is not used in computing relative frequency. Option B is incorrect as the frequency is divided by the sample size, not the midpoint. Option C is also incorrect as the frequency is divided by the sample size, not the other way around.