document.write( "Question 737180: Survey 240people consisting of 159boys and remaining girls rated a tv programme as Excellent Good Average.
\n" ); document.write( "Boys 42Excellent 70Good 47Average
\n" ); document.write( "Girls 38Excellent 30Good 13Average.\r
\n" ); document.write( "\n" ); document.write( "Quest: If a person is selected at random, what is the probability that he/she \r
\n" ); document.write( "\n" ); document.write( "1. rated average given that she is a girl?
\n" ); document.write( "2. is a boy given that the rating is Excellent? \n" ); document.write( "
Algebra.Com's Answer #450221 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
Survey 240people consisting of 159boys and remaining girls rated a tv programme as Excellent Good Average.
\n" ); document.write( "Boys 42Excellent 70Good 47Average
\n" ); document.write( "Girls 38Excellent 30Good 13Average.\r
\n" ); document.write( "\n" ); document.write( "Quest: If a person is selected at random, what is the probability that he/she \r
\n" ); document.write( "\n" ); document.write( "1. P(rated average given that she is a girl) = P(ave and girl)/P(girl)
\n" ); document.write( "= (13/240)/(81/240) = 13/81
\n" ); document.write( "----------------------------------------
\n" ); document.write( "2. P(is a boy given that the rating is Excellent) = P(boy and elcell)/P(boy)
\n" ); document.write( "= (42/240)/(159/240) = 42/159\r
\n" ); document.write( "\n" ); document.write( "=================
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( "=================== \n" ); document.write( "
\n" );