document.write( "Question 742030: Could use some help with this please.
\n" ); document.write( "If P( A and B)=0.40 and P(A)=0.20 what is the value of P(B|A)? What is wrong with this question?
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Algebra.Com's Answer #452257 by Edwin McCravy(20065) $\"\"$ $\"About$

You can put this solution on YOUR website!

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document.write( "1. First reason why the problem is flawed:\r\n" );
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document.write( "P(B|A) =  =  =  = 2.\r\n" );
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document.write( "That's impossible because all probabilities are between 0 and 1.\r\n" );
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document.write( "2. Second reason why the problem is flawed:\r\n" );
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document.write( "P(A and B) can never be greater than P(A) or greater than P(B),\r\n" );
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document.write( "yet we are given the impossible case P(A and B)=0.40 and P(A)=0.20  \r\n" );
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document.write( "Edwin

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