The following frequency distribution represents the scores on a math test. Find the class midpoint of scores for the interval 40-59. $$\begin{array} { c c }
\hline \text { Scores } & \text { Number of students } \
\hline 50 - 59 & 2 \
60 - 69 & 4 \
70 - 79 & 6 \
80 - 89 & 15 \
90 - 99 & 5 \
\hline
\end{array}$$
A) 50.5
B) 48.5
C) 49.5
D) 49.0

Question

The following frequency distribution represents the scores on a math test. Find the class midpoint of scores for the interval 40-59. $$\begin{array} { c c } 
\hline \text { Scores } & \text { Number of students } \
\hline 50 - 59 & 2 \
60 - 69 & 4 \
70 - 79 & 6 \
80 - 89 & 15 \
90 - 99 & 5 \
\hline
\end{array}$$
A) 50.5
B) 48.5
C) 49.5
D) 49.0

Quizplus · Accepted Answer

The class midpoint is calculated by averaging the lower and upper boundaries of the class interval: (40 + 59) / 2 = 49.5.

The Following Frequency Distribution Represents the Scores on a Math