Question $23$

Use the project, answer questions

Time Estimates

Activity a m b Immediate predecessors

A $,6,10,14$

$8,9,13$

$C4,12,20,A$

D $,6,8,10$

B$,$ C

Which of the following statements is true?

The expected time for activity $C$ is $10\mathrm{.}00.$

The variance for activity $B$ is $1\mathrm{.}36.$

None of the statements is true.

The largest expected time occurs for activity B$.$

The largest variance is for activity $C.$