PLEASE SHOW ALL STEPS. SHOW ALL WORK AND EXPLAIN YOUR ANSWER. PLEASE DO EVERY STEP. WRITE WITH BLACK PEN AND PAPER ONLY - NO TYPING. PLEASE WRITE VERY NEATLY - NO CURSIVE AT ALL

MONDU ZERO

MONDU MONDU

An activity on a PERT network has these time estimates: optimistic = 1, most likely = 4, and pessimistic = 7. Its variance of time is A. 2.33. B. 4.00. C. 2.00. D. 1.00. E. 0.533. An activity on a PERT network has these time estimates: optimistic = 14, most likely = 21, and pessimistic = 33. Its expected time and variance (if it is a critical activity) are A. 24.13; 6.51. B. 43.3; 1. C. 23.67; 8.89. D. 21.83; 10.03. E. 18.33; 11.45. An activity on a PERT network has these time estimates: optimistic = 3, most likely = 5, and pessimistic = 8. Its expected time is A. 4.00. B. 5.16. C. 0.533. D. 2.00. E. 5.33