document.write( "Question 1060855: A small town has 5000 adult males and 3000 adult females. A sociologist conducted a survey and found that 50% of the males and 40% of the females drink heavily. An adult is selected at random from the town. (Enter your probabilities as fractions.)
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document.write( "(a) What is the probability the person is a male or drinks heavily? \r
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document.write( " (d) What is the probability the person is a male, if it is known that the person drinks heavily?
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document.write( "Please and thank you so much in advanced!
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Algebra.Com's Answer #675713 by Boreal(15235) You can put this solution on YOUR website! 8000 people in town \n" ); document.write( "5000 men *1/2=2500 who drink; 3000*(0.40)=1200 who drink. \n" ); document.write( "The probability of (man OR drinks) is (50/80)+(37/80)-both (25/80)=62/80=31/40 \n" ); document.write( "-------------------- \n" ); document.write( "Number of people who drink are 2500 men and 1200 women or 3700 altogether. \n" ); document.write( "If the person is known to drink heavily (3700), the probability the person is a man is 2500/3700 or 25/37. \n" ); document.write( " |