Question Completion Status:

D

G

QUESTION $18$

The following table of probabilistic time estimates $($in weeks$)$ and activity predecessors are provided for a project.

Activity

Immediate

Predecessor

Optimistic Time

Most Probable

Time

$11$

$3$

$6$

$10$

A$,$

$6$

Pessimistie Time

$14$

$9$

$14$

$7$

$11$

D$,$ E

F

$4$

$3$

$13$

$$

$9$

Table $1$

Reference: Ref $1$

Using Table $1,$ the variance of the project's total completion time is approximately

O A$.1\mathrm{.}36$

$$ B$.1\mathrm{.}78$

C$.2\mathrm{.}03$

$$ D$.4\mathrm{.}14$

$$ E$.$ None of the above