document.write( "Question 1110477: The probability that a boy will pass the examination is 0.70 and that for girl is 0.60. What is the probability that at least one of them will pass the examination? \n" ); document.write( "

Algebra.Com's Answer #725460 by ikleyn(52932) $\"\"$ $\"About$

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document.write( "The probability that the boy  will not pass the exam is  1-0.7 = 0.3.\r\n" );
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document.write( "The probability that the girl will not pass the exam is  1-0.6 = 0.4.\r\n" );
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document.write( "The probability that both of them will not pass the exam is  0.3*0.4 = 0.12.\r\n" );
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document.write( "The probability that at least one of them will pass the exam is the complement  1 - 0.12 = 0.88.\r\n" );
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document.write( "Answer.  The probability under the question is  1 - (1-0.7)*(1-0.6) = 0.88.\r\n" );
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