The following frequency distribution displays the scores on a math test. Find the class boundaries of scores interval 40-59. $$\begin{array} { | c c | }
\hline \text { Scores } & \text { Number of Students } \
50 - 59 & 2 \
60 - 69 & 4 \
70 - 79 & 6 \
80 - 89 & 15 \
90 - 99 & 5 \
\hline
\end{array}$$
A) 50.5, 58.5
B) 49.5, 58.5
C) 50.5, 59.5
D) 49.5, 59.5

Question

The following frequency distribution displays the scores on a math test. Find the class boundaries of scores interval 40-59. $$\begin{array} { | c c | } 
\hline \text { Scores } & \text { Number of Students } \
50 - 59 & 2 \
60 - 69 & 4 \
70 - 79 & 6 \
80 - 89 & 15 \
90 - 99 & 5 \
\hline
\end{array}$$
A) 50.5, 58.5
B) 49.5, 58.5
C) 50.5, 59.5
D) 49.5, 59.5

Quizplus · Accepted Answer

The class boundaries are found by subtracting 0.5 from the lower class limit and adding 0.5 to the upper class limit. For the interval 50-59, the boundaries are 49.5 and 59.5.

The Following Frequency Distribution Displays the Scores on a Math