Q1) In web site development project network, shows in following figure, number alongside each activity designates the activity duration (TE) in weeks.

Find out:

a) The ES and LS for each activity.

b) The earliest time that the web site can be completed

c) The slack on all activities.

d) The critical activities.

e) The critical path.

Q2) If A and B are mutually exclusive events P (A) = 0.3 and P (B) = 0.5, then P(A  B)=

i) 0.00 

ii) 0.15 

iii) 0.8 

iv) 0.2

Q3) Experiment consists of 4 outcomes with P (E1) = 0.2, P (E2) = 0.3, and P (E3) = 0.4. Probability of outcome E4 is?

i) 0.500 

ii) 0.024 

iii) 0.100 

iv) 0.900