The frequency distribution below summarizes employee years of service for Alpha Corporation. Determine the width of each class. $$\begin{array} { | c c | }
\hline \text { Years of Service } & \text { Frequency } \
1 - 5 & 5 \
6 - 10 & 20 \
11 - 15 & 25 \
16 - 20 & 10 \
21 - 25 & 5 \
26 - 30 & 3 \
\hline
\end{array}$$
A) 4 years
B) 10 years
C) 6 years
D) 5 years

Question

The frequency distribution below summarizes employee years of service for Alpha Corporation. Determine the width of each class. $$\begin{array} { | c c | } 
\hline \text { Years of Service } & \text { Frequency } \
1 - 5 & 5 \
6 - 10 & 20 \
11 - 15 & 25 \
16 - 20 & 10 \
21 - 25 & 5 \
26 - 30 & 3 \
\hline
\end{array}$$
A) 4 years
B) 10 years
C) 6 years
D) 5 years

Quizplus · Accepted Answer

The width of each class is the difference between the upper bound and lower bound of each class interval. 
For example, the width of the first interval 1-5 is 5-1=4. 
Therefore, the width of each class is 4 years.

The Frequency Distribution Below Summarizes Employee Years of Service for Alpha