document.write( "Question 258838: A certain airplane has two independent alternators to provide electrical power. The probability that a given alternator will fail on a one-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.\r
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Algebra.Com's Answer #190540 by Fombitz(32388)\"\" \"About 
You can put this solution on YOUR website!
P(both fail)=\"%280.2%29%280.2%29=0.04\"
\n" ); document.write( "P(neither fail)=\"%280.8%29%280.8%29=0.64\"
\n" ); document.write( "P(one fail)=P(first fails,second doesn't)+P(first doesn't, second fails)=\"%280.2%29%280.8%29%2B%280.8%29%280.2%29=0.32\"
\n" ); document.write( "Ptotal=\"0.04%2B0.64%2B0.32=1\" (all possible events are covered)
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