Homework Help: statistics

Posted by steven on Friday, October 9, 2009 at 1:14pm.

A certain airplane has two independent alternators to provide electrical power. The probability that a given alternator will fail on a 1-hour fight 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

statistics - bobpursley, Friday, October 9, 2009 at 4:01pm
Pr(one)=.02
pr(both)=.02*.02
Pr(neither)=.98*.98
pr(one or other)=.02*.98+.98*.02

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