An aircraft has three engines A, B and C. The aircraft crashes if all the three engines fail. The probabilties of failure are 0.03, 0.02 and 0.05 for engines A, B and C respectively. What is probability that the aircraft will not crash ?

An aircraft has three engines A, B and C. The aircraft crashes if all the three engines fail. The probabilities of failure are 0.03, 0.02 and 0.05 for engines A, B and C respectively. What is the probability that the aircraft will not crash?

A machine operates only when all of its three components function The probabilities of the failures of the first , second and third component are 0.2, 0,3 and 0.5 respectively . What is the probability that the machine will fail ?

A machine operates only when all of its three components function. The probabilities of the failures of the first, second and third components are 0.14, 0.10 and 0.05 respectively. What is the probability that the machine will fail.

A machine operates only when all of its three components function. The probabilities of the failures of the first, second and third components are 0.14,0.10 and 0.05 respectively. What is the probability that the machine will fail.

Three persons A,B and C fire a target in turn . Their probabilities of hitting the target are 0.4 , 0.3 and 0.2 respectively . The probability of two hits is

Three persons A,B and C , fire at a target in turn, starting with A . Their probability of hitting the target are 0.4, 0.3 and 0.2 , respectively. The probability of two hits is

A machine has three parts, A, B and C, whose chances of being defective are 0.02, 0.10 and 0.05 respectively. The machine stops working if any one of the parts becomes defective. What is the probability that the machine will not stop working?

If the probabilities for A to fail in anexamination is 0.2 and that for B is 0.3, then the probability that either A or B fails is

If the probabilities for A to fail in an examination is 0.2 and that for B is 0.3, then the probability that either A or B fails is