Use the Graph to Answer the Question

question 43

Short Answer

Use the graph to answer the question.
-The grade point averages for 40 evening students are listed below. Construct a frequency bar graph and a relative frequency bar graph. $$\begin{array} { l l l l l l l l l l } 2.0 & 3.2 & 1.8 & 2.9 & 0.9 & 4.0 & 3.3 & 2.9 & 3.6 & 0.8 \\3.1 & 2.4 & 2.4 & 2.3 & 1.6 & 1.6 & 4.0 & 3.1 & 3.2 & 1.8 \\2.2 & 2.2 & 1.7 & 0.5 & 3.6 & 3.4 & 1.9 & 2.0 & 3.0 & 1.1 \\3.0 & 4.0 & 4.0 & 2.1 & 1.9 & 1.1 & 0.5 & 3.2 & 3.0 & 2.2\end{array}$$

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Definitions:

CPM Network

Critical Path Method Network; a project management tool used to identify the longest sequence of dependent tasks and estimate the minimum completion time for a project.

PERT Network

Project Evaluation and Review Technique Network; a project management tool used to schedule, organize, and coordinate tasks within a project.

Variance

A statistical measure that represents the spread of a data set, indicating how far each number in the set is from the mean and from each other.

Critical Path

The longest duration path through a project, determining the shortest time possible to complete the project, where any delay could extend the overall project duration.