question 17 only. final answer needed

Question 16 1 pts Table 1 below contains the optimistic time (a), most likely time (m), and pessimistic time (b) based on which the expected time and variance for some activities are calculated and included in the table. Please use the available information to answer questions 16 and 17. Variance 1 Table 1 Activity a m b Expected Time A 47 | 10 7 B 2 8 20 2 8 12 16 12 D 1 2 3 2 E 6 8 22 10 ? 1.78 0.11 7.11 F 2 3 4 3 0.11 G 2 2 2 2 0 H 6 8 10 8 0.44 1 4 8 12 8 1.78 J 1 2 3 2 0.11 What are the expected time and variance for activity B? Question 17 1 pts The critical path for this project is A-C-F-H-I-J. What is the probability of completing the critical path within week 42? O 0.60 O 0.875 O 0.75 O 0.95 O 0.81