A company collected the ages from a random sample of its middle managers with the resulting frequency distribution shown below:
$$\begin{array} { l r }
\text { Class Interval } & \text { Frequency } \
20 \text { to }

Question

A company collected the ages from a random sample of its middle managers with the resulting frequency distribution shown below:
$$\begin{array} { l r } 
\text { Class Interval } & \text { Frequency } \
20 \text { to } < 25 & 8 \
25 \text { to } < 30 & 6 \
30 \text { to } < 35 & 5 \
35 \text { to } < 40 & 12 \
40 \text { to } < 45 & 15 \
45 \text { to } < 50 & 7
\end{array}$$
-What is the relative frequency for the largest interval?
A)0.132
B)0.226
C)0.231
D)0.283
E)0.288

Quizplus · Accepted Answer

The largest interval is 40 to <45 with a frequency of 15. The total frequency is 8+6+5+12+15+7=53. The relative frequency is calculated as the frequency of the interval divided by the total frequency: 15/53 ≈ 0.283.

A Company Collected the Ages from a Random Sample of Its