Question $45$

$1$ pts

A construction company is using PERT for a project with a critical path consisting of $7$ activities and an expected duration of $21$ days with a variance of $3\mathrm{.}5$ days. The project supervisor wants to calculate the probability that the project will require more than $23$ days to complete. If the red shaded areas in the diagrams below represent probabilities, which diagram best represents the probability the supervisor wants to calculate?

$$ P$5$

P$3$ or P$6$

P$1$

P$4$

P$2$