1) When developing probabilistic estimates of project duration, it is necessary to know which of the following:

A) the mean and variance of every activity

B) the mean and variance of activities on the critical path

C) the standard deviation of activities on the critical path

D) each activity's probability of completion

E) the distribution of activity times

2) Using the double exponential smoothing process, is it possible to forecast a demand that is bigger than any previously observed demand? A) Yes B) No