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

question 60

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

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Definitions:

Analysis of Variance

A collection of statistical models used to compare the means of three or more samples.

Level of Significance

A threshold used in hypothesis testing that determines the probability of rejecting a null hypothesis when it is actually true.

Useful Life

The estimated period that an asset is expected to be usable for its intended purpose.