A Company Has a PERT Project with Path B?d?e?g?i That

question 31

Essay

A company has a PERT project with path b?d?e?g?i that has these activity time estimates in days:
$$\begin{array} { c c c c } \text { Activity } & \begin{array} { c } \text { Optimistic } \\\text { t }_o\end{array} & \begin{array} { c } \text { Most Likely } \\\text { t }_m \\\end{array} & \begin{array} { c } \text { Pessimistic } \\\text { t }_p\end{array} \\\hline \text { b } & 15 & 17 & 20 \\ \text { d } & 21 & 22 & 22 \\ \text { e } & 27 & 30 & 35 \\ \text { g } & 23 & 27 & 29 \\\text {i}& 25 & 31 & 34 \\\end{array}$$
a. What is the expected duration for activity "e"?
b. What is the variance for activity "b"?
c. What is the standard deviation of the path?

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Definitions:

Adolescents

Individuals in the transition phase from childhood to adulthood, typically between the ages of 13 and 19, experiencing rapid physical, emotional, and social changes.

Puberty

The developmental stage in humans marked by physical changes signaling the onset of sexual maturity and the ability to reproduce.

Junior High

An educational level that serves as a bridge between elementary school and high school, typically including grades 7-9.

Dropping Out

The act of leaving school, college, or university before completing the course of study.