Consider the Following Frequency Distribution What Is the Midpoint of the First Class?
A)10
B)20

Multiple Choice

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 midpoint of the first class?

A) 10
B) 20
C) 15
D) 30
E) 40