A small software development project at Krishna Dhir's tim has five major activities. The times are estimated and provided in the table below. IMMEDIATE PREDECESSOR m ACTIVITY A B D E 2 3 3 2 2 b 8 9 15 8 2 B c ULOG mo 5 2 a) Find the expected completion time for this project The expected completion time for this projectes conter your response as a whole number) b) What variance value would be used to find probabilities of finishing by a certain time? The project variance value of completion time is enter your response as a whole number)