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

Question

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

Quizplus · Accepted Answer

The cumulative frequency for the 30-under 40 class includes all data points from the 10-under 20, 20-under 30, and 30-under 40 intervals. There are 4 data points in the 10-under 20 interval, 4 in the 20-under 30 interval, and 5 in the 30-under 40 interval, totaling 13.

Consider the Following Stem and Leaf Plot Stem Leaf 10,2,5,722,3,4,830,4,6,6,945,8,8,952,7,8\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} Stem 12345​ Leaf 0,2,5,72,3,4,80,4,6,6,95,8,8,92,7,8​

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