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

Multiple Choice

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