The following is a relative frequency distribution of grades in an introductory statistics course. $\begin{array}{|l|c|}
\hline \text { Grade } & \text { Relative Frequency } \
\hline \text { A } & .22 \
\hline \text { B } & ? \
\hline \text { C } & .18 \
\hline \text { D } & .17 \
\hline \text { F } & .06 \
\hline
\end{array}$
If this was the distribution of 200 students,find the frequency of failures.
A)12
B)6
C)23
D)46
E)3

Question

Quizplus · Accepted Answer

The relative frequency of failures is 0.06, so the frequency of failures is 0.06 * 200 = 12.

The Following Is a Relative Frequency Distribution of Grades in an Introductory