Consider the following frequency distribution: $$\begin{array} { l c }
\text { Class Interval } & \text { Frequency } \
10 \text {-under } 20 & 15 \
20 \text {-under } 30 & 25 \
30 \text {-under } 40 & 10
\end{array}$$
What is the cumulative frequency of the second class interval?
A)25
B)40
C)15
D)50

Question

Consider the following frequency distribution: $$\begin{array} { l c } 
\text { Class Interval } & \text { Frequency } \
10 \text {-under } 20 & 15 \
20 \text {-under } 30 & 25 \
30 \text {-under } 40 & 10
\end{array}$$
What is the cumulative frequency of the second class interval?
A)25
B)40
C)15
D)50

Quizplus · Accepted Answer

The cumulative frequency of the second class interval is the sum of the frequencies of the first and second class intervals, which is 15 (from the first interval) + 25 (from the second interval) = 40.

Consider the Following Frequency Distribution What Is the Cumulative Frequency of the Second Class Interval