(3 marks) c) A project consists of seven activities
A,B,C,D,E,F,G
. The precedence relationships and time estimates are as follows: \table[[Job precedence,Duration in weeks],[A,,2,5,8],[B,A,6,9,12],[C,A,5,14,17]] 2 \table[[D,B,5,8,11],[E,GD,3,6,9],[F,-,3,12,21],[G,EF,1,4,7]] ii) Determine the expected job duration and variance of each job. ( 5 marks)
q,
iii) What is the expected length of the project and its variance? (4 marks)