document.write( "Question 1121312: A small tourism company has two old tour buses that frequently break down.\r
\n" ); document.write( "\n" ); document.write( "The probability that the first bus is working is 0.60, the probability that the second bus is working is 0.58, and the probability that both are working is 0.45.\r
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Algebra.Com's Answer #737158 by ikleyn(52905) $\"\"$ $\"About$

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document.write( "The probability that at least one bus is working (either bus is working) is\r\n" );
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document.write( "    P(A U B) = P(A) + P(B) - P(AnB) = 0.6 + 0.58 - 0.45 = 0.73.\r\n" );
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document.write( "The probability that NEITHER bus is working is the complement to it\r\n" );
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document.write( "    P(neitherA norB) = 1 - 0.73 = 0.27.\r\n" );
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