Activity m b A 6.5 7.5 14.5 8.5 10.5 12.5 2.5 3.5 4.5 6.5 7.5 8.5 5.5 5.5 9.5 5.5 7.5 9.5 4.5 6.5 8.5 2.5 3.5 3.5 what is the probability that the project will be completed within (based on the path with the longest expected time): (a) 21 days? 22 days? 25 days