document.write( "Question 236120: a manufacturer purchases two machines A and B .the probability that A will last five years is 4/5 and the probability that B will last five years is 3/4 find the probability that atleast one machine will last for five years \n" ); document.write( "
Algebra.Com's Answer #173849 by stanbon(75887)\"\" \"About 
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a manufacturer purchases two machines A and B .the probability that A will last five years is 4/5 and the probability that B will last five years is 3/4 find the probability that atleast one machine will last for five years
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\n" ); document.write( "Find the probability that neither will last 5 years:
\n" ); document.write( "= (1/5)(1/4) = 1/20
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\n" ); document.write( "Your Problem:
\n" ); document.write( "P(at least will last) = 1 - P(neither will last)
\n" ); document.write( "= 1 = 1/20 = 19/20
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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