Question: Verify the expected time and variance for event ( 4004- 199 ), and verify the probability of 0.12 given for activity (4004-743 )-(4004-199) in Figure

Verify the expected time and variance for event ( 4004- 199 ), and verify the probability of 0.12 given for activity (4004-743 )-(4004-199) in Figure l l-13b. Note : the values of a and b given in this figure are the end points of the distribution of activity performance time as used in conventional PERT Hence ( V, ) 112 = ( b - a)/6 should be used in place of equation ( 3) given in this text. Also, note that the time interval 12-13-61 to 12-25-61 is equivalent to 1.6 working weeks.

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