Question

Promotion test, max of 3 attempts allowed with 6 months trail. It was found30 % pass on the 1st trail. of those who fail took 2nd trail and 40% passed. 3rd attempt 60 % pass. wat is the probability of passing the teat on 1st and 2nd try

Answer 1

probability of failing first 2 tries is --> 0.7*0.6 = .42
therefore 58% chance you pass on either 1st or 2nd attempt

Answer 2

Thank u..