document.write( "Question 523757: Give probabilities for the following\r
\n" ); document.write( "\n" ); document.write( "age :.....<20....20-40.....>40(age group)
\n" ); document.write( "male:.....168....340.......170
\n" ); document.write( "female:...208....290.......160\r
\n" ); document.write( "\n" ); document.write( "1.Using the relative frequency of occurrence approach, what is the probability that a customer is a male?\r
\n" ); document.write( "\n" ); document.write( "2.What is the probability that a customer is 20 – 40 years old?\r
\n" ); document.write( "\n" ); document.write( "3.What is the joint probability of a customer being 20 – 40 years old and a male?\r
\n" ); document.write( "\n" ); document.write( "4.Calculate the probability that a customer selected from the male customers would be less than 20 years old. Calculate the same for the female customers. Does it appear that gender is independent of age? Support your answer with calculations and reasons.
\n" ); document.write( "
\n" ); document.write( "

Algebra.Com's Answer #347436 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
Give probabilities for the following:
\n" ); document.write( "age :.....<20....20-40.....>40(age group)..Totals
\n" ); document.write( "male:.....168....340.......170.............678
\n" ); document.write( "female:...208....290.......160.............658
\n" ); document.write( "Totals:...376....630.......330............1336
\n" ); document.write( "=====================================================
\n" ); document.write( "1.Using the relative frequency of occurrence approach, what is the probability that a customer is a male?::::678/1336
\n" ); document.write( "------
\n" ); document.write( "2.What is the probability that a customer is 20 – 40 years old?630/1336
\n" ); document.write( "--------
\n" ); document.write( "3.What is the joint probability of a customer being 20 – 40 years old and a male?:::340/1336
\n" ); document.write( "--------------------
\n" ); document.write( "4.Calculate the probability that a customer selected from the male customers would be less than 20 years old.:::168/376
\n" ); document.write( "-------------------------
\n" ); document.write( "Calculate the same for the female customers.:::208/376
\n" ); document.write( "Does it appear that gender is independent of age?::Yes
\n" ); document.write( "Support your answer with calculations and reasons.:::Expected probability
\n" ); document.write( "for both would be (188/376). The observed probs are quite different.
\n" ); document.write( "---------------
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( "
\n" ); document.write( "
\n" );