describe in detail agile project management methodologiesQUESTION $3$

a$.$ Describe in detail any two Agile project management methodologies.

b$.$ Below are the critical activities of a PERT diagram. The optimistic time $($a$),$ most likely

time $($m$),$ and pessimistic time $($b$)$ are shown at the bottom of each activity. Calculate the

most likely time $,)$ for each activity.

Calculate the optimistic, pessimistic, and expected time for completing the project $[6]$

i$)$ Determine the probability that this project can be completed in $37$ days

ii$)$ Determine the probability that this project will be completed by the $34$ th day