Consider the Following Stem and Leaf Plot $$\begin{array} { c l } \text { Stem } & \text { Leaf } \\1 & 0,2,5,7 \\2 & 2,3,4,8 \\3 & 0,4,6,6,9 \\4 & 5,8,8,9 \\5 & 2,7,8\end{array}$$

Multiple Choice

Consider the following stem and leaf plot:
$$\begin{array} { c l } \text { Stem } & \text { Leaf } \\1 & 0,2,5,7 \\2 & 2,3,4,8 \\3 & 0,4,6,6,9 \\4 & 5,8,8,9 \\5 & 2,7,8\end{array}$$
Suppose that a frequency distribution was developed from this, and there were 5 classes (10-under 20, 20-under 30, etc.) .What is the cumulative frequency for the 30-under 40 class interval?

A) 5
B) 9
C) 13
D) 14
E) 18