Of 100 research participants, 10 are in group A, 22 in group B, 30 in group C, and 38 in group D. What is the relative frequency for participants in group D?
A) .010
B) .022
C) .030
D) .038

Question

Quizplus · Accepted Answer

Relative frequency is the fraction or proportion of the whole group that belongs to a certain category. 
Relative frequency of Group D = (number in Group D) / (total number of participants) = 38 / 100 = 0.38 
Therefore, the closest option is D, which is equal to 0.038.

Of 100 Research Participants, 10 Are in Group A, 22