document.write( "Question 1206320: A sample is selected from one of two populations,
\n" ); document.write( "S1 and S2,
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\n" ); document.write( "P(S1) = 0.7
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\n" ); document.write( "P(S2) = 0.3.
\n" ); document.write( " The probabilities that an event A occurs, given that event
\n" ); document.write( "S1
\n" ); document.write( " or
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\n" ); document.write( "P(A|S1) = 0.4
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\n" ); document.write( "P(A|S2) = 0.3
\n" ); document.write( "and the probability of event A is
\n" ); document.write( "P(A) = 0.37.
\n" ); document.write( "Use Bayes' Rule to find
\n" ); document.write( "P(S2|A).
\n" ); document.write( " (Round your answer to four decimal places.) \n" ); document.write( "

Algebra.Com's Answer #843681 by Edwin McCravy(20054) $\"\"$ $\"About$

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document.write( "While this can done using the conditional probability equation,\r\n" );
document.write( "as Ikleyn has shown, we were asked to use Bayes' Rule, (which is\r\n" );
document.write( "proved by using the conditional probability equation). Bayes' rule \r\n" );
document.write( "is this proportion:\r\n" );
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document.write( "Substituting:\r\n" );
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document.write( "That rounds to 0.2432\r\n" );
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document.write( "Edwin

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