A certain airplane has two independent ?

Question

alternators to provide electrical power. The probability that a given a?1-hour flight is .02. What is the probability that (a) both will fail? (b) Neither will fail? (c) One or the other will fail? Show all steps carefully.

Answer 1

both=p1 x p2

.02x.02

.0004

neither=P1 not x P2 not

.98 x.98

.9604

One=1-p neither

1-.9604=.0306