document.write( "Question 1208185: One individual is randomly selected from 500:
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\n" ); document.write( "(a) Given that the individual is a heavy smoker, what is the
\n" ); document.write( "probability that he/she does not have prominent wrinkles?
\n" ); document.write( "(b) What is the probability that the selected individual is a
\n" ); document.write( "heavy smoker or has prominent wrinkles? \n" ); document.write( "

Algebra.Com's Answer #846425 by ikleyn(52781) $\"\"$ $\"About$

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One individual is randomly selected from 500:\r\n" );
document.write( "         Wrinkles       Wrinkles\r\n" );
document.write( "         Prominent    Not Prominent\r\n" );
document.write( "Heavy Smoker 120          60\r\n" );
document.write( "Light Smoker 75           245\r\n" );
document.write( "(a) Given that the individual is a heavy smoker, what is the\r\n" );
document.write( "probability that he/she does not have prominent wrinkles?\r\n" );
document.write( "(b) What is the probability that the selected individual is a\r\n" );
document.write( "heavy smoker or has prominent wrinkles?

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document.write( "                     Solution\r\n" );
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document.write( "(a)  Given that the individual is a heavy smoker, we look into the first line \r\n" );
document.write( "     in the table, only, and take the values from there.\r\n" );
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document.write( "     Doing this way, for the probability under the question, we get\r\n" );
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document.write( "         P =  =  = .    ANSWER\r\n" );
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document.write( "(b)  In (b), the individual is randomly selected from the total of 500.\r\n" );
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document.write( "     Therefore,  P =  =  = 0.51.    ANSWER\r\n" );
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