Calculate the three$-$point estimates $($weighted averages$)$ for the following activity durations:

Optimistic $($O$)$ Most Likely $($ML$)$ Pessimistic $($P$)$ Solution

Activity $15815$

Activity $261521$

Activity $3136$

Activity $4202223$

Activity $5121730$

Activity $6434549$

Activity $7737373$

Activity $8252838$