document.write( "Question 1147683: Given that P(A)=0.89 and P(B|A)=0.34, find the joint probability P(A and B): \n" ); document.write( "

Algebra.Com's Answer #769036 by ikleyn(52776) $\"\"$ $\"About$

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document.write( "P(B | A) is equal to  P(A and B) / P(A), by the definition of conditional probability.\r\n" );
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document.write( "So, you are given  P(A) = 0.89  and  P(A and B) / P(A) = 0.34.\r\n" );
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document.write( "Therefore, to find  P(A and B),  you need simply multiply 0.34 by 0.89 to get the answer.\r\n" );
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\n" ); document.write( "\n" ); document.write( "Happy calculations (!)\r
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\n" ); document.write( "\n" ); document.write( "On conditional probabilities, see the lesson\r
\n" ); document.write( "\n" ); document.write( " - Conditional probability problems \r
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