most likely time

optimistic time

pessimistic time

expected time

1, 2,3, 4, 5, 6 and 7 respectively

1, 3,2,4, 5,6 and 7 respectively

1,2, 3, 5, 6,4 and 7 respectively

1, 3,2, 5, 6,4 and 7 respectively

site located

foundation is being dug

the office area is being cleaned

the invitations are being sent

greater than earliest event time of the following node

less than earliest event time of the following node

less than or equal to earliest event time of the following node

greater than or equal to earliest event time of the following node

Earliest start of an activity is the early event time of the node it leaves.

Latest finish of an activity is the late event time of the node it enters.

Latest start of an activity is its latest finish minus its duration.

none of the above