There are four activities on the critical path, and the standard deviations for their durations are 2, 3, 8, and 5 days. The standard deviation of the duration of the critical path is: O a. 18 O b. 102 O c. 4.5 O d. 10.1 O e. 4.243

There are four activities on the critical path, and the standard deviations for their durations are 2,3,8, and 5 days. The standard deviation of the duration of the critical path is: a. 18 b. 102 c. 4.5 d. 10.1 e. 4.243