QUESTION $5$

$(2$ marks$)$

$[10$ MARKS$]$

Fundile is constructing a network for project Topnotch. As project manager she needs to know all the tasks that must be completed to finalise the transport project. Once plotted, activity durations are calculated before she can determine early and late starting times, slack for each activity, project completion date and the critical path.

$5\mathrm{.}1$ Propose the required formula used to calculate the expected time for an activity.

$(2$ marks$)$

$5\mathrm{.}2$ Compile the key supporting the formula, indicating the meaning of each element of the formula provided in $5\mathrm{.}1.$

$(4$ marks$)$

$5\mathrm{.}3$ Calculate the expected time for activity $F,$ considering the following information available on project Topnotch, where $a=4$ days; $b=8$ days; and $m=6$ days.

$(4$ marks$)$