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

Question

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

Quizplus · Accepted Answer

The class boundaries are the values that separate the classes. The lower class boundary is the value below which the scores in the class fall, and the upper class boundary is the value above which the scores in the class fall. For the scores interval 40-59, the lower class boundary is 39.5 and the upper class boundary is 59.5.

The Following Frequency Distribution Displays the Scores on a Math