The following frequency distribution analyzes the scores on a math test. Find the class boundaries of scores interval 40-59.
$$\begin{array} { c c }
\hline \text { Scores } & \text { Number of students } \
\hline 40 - 59 & 2 \
60 - 75 & 4 \
76 - 82 & 6 \
83 - 94 & 15 \
95 - 99 & 5 \
\hline
\end{array}$$
A) 39.5, 58.5
B) 40.5, 58.5
C) 40.5, 59.5
D) 39.5, 59.5

Question

The following frequency distribution analyzes the scores on a math test. Find the class boundaries of scores interval 40-59. 
$$\begin{array} { c c } 
\hline \text { Scores } & \text { Number of students } \
\hline 40 - 59 & 2 \
60 - 75 & 4 \
76 - 82 & 6 \
83 - 94 & 15 \
95 - 99 & 5 \
\hline
\end{array}$$
A) 39.5, 58.5
B) 40.5, 58.5
C) 40.5, 59.5
D) 39.5, 59.5

Quizplus · Accepted Answer

Class boundaries are found by subtracting 0.5 from the lower limit and adding 0.5 to the upper limit of the class interval. For the interval 40-59, the boundaries are 39.5 and 59.5.

The Following Frequency Distribution Analyzes the Scores on a Math