Activity a m b Immediate Predecessor$($s$)$ Activity a m b Immediate Predecessor$($s$)$

A $81011-$ C $9913$ A

B $41017-$ D $6811$ B

The expected completion time of the path other than the critical path$=$

$$

$18\mathrm{.}34$ weeks $($round your response to two decimal$$ places$).$

Part $8$

$$c$)$ The variance of the critical path$=$

$$

enter your response here weeks $($round your response to two decimal$$ places$).$