Posted by Jazmyne on Monday, March 23, 2009 at 10:01pm.
A certain airplane has two independent alternators to provide electrical power. The probability that a given alternator will fail on 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.

Statistics  drwls, Tuesday, March 24, 2009 at 1:27am
(a) (0.02)^2 = 0.0004
(b) (0.98)^2 = 0.9604
(c) (0.02)(0.98) + (0.98)(0.02) = 0.0392
Note that the sum is 1.0000