Use This Information to Answer the Following Questions

Multiple Choice

Use this information to answer the following questions.
Consider the following Activity-On-Node (AON) PERT project.The three values that represent each activity's completion time (in days) correspond to an optimistic time,most likely time,and pessimistic time,respectively.

-Refer to the figure.What is the standard deviation associated with the completion time of activity B?

A) 0.1111
B) 0.2222
C) 0.3333
D) 2
E) 5