When Using the Beta Distribution for Estimating Activity Times

Multiple Choice

When using the beta distribution for estimating activity times:

A) an advantage is that the mode of the distribution is always equidistant from the end points of the distribution.
B) the most likely time estimate can be positioned anywhere between the optimistic and pessimistic time estimates.
C) we assume that the standard deviation is one-third the range between the optimistic and pessimistic time estimates.
D) the most likely time estimate becomes the mean of the distribution.