Consider a project with uncertainty regarding the activity duration times. Let the PERT critical path

have an expected length of $8$ weeks and a standard deviation of $2$ weeks. What is the probability according

to the PERT method that this project can be completed in $10$ weeks?

A $0\mathrm{.}92$

B $0\mathrm{.}84$

C $1\mathrm{.}0$

D $0\mathrm{.}66$