document.write( "Question 385490: Consider the following contingency table of travelers on a cruise ship and their ages:
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document.write( "Age 1st cruise 2nd cruise 3rd cruise
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document.write( "21 - 30 25 17 33
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document.write( "31 - 40 12 23 10
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document.write( "41 – 50 35 15 45
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document.write( "Total 72 55 88 \r
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document.write( "A. If a person is selected at random, what is the probability it is his/her 2nd cruise? ____
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document.write( "B. If a person is selected at random, what is the probability the person is either in the age group 31-40 or 41-50? ____
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document.write( "C. If a person is selected at random, what is the probability the person is either 21-30 or on his/her 2nd cruise? _____
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document.write( "D. If two people are selected at random, what is the probability they are both on their 1st cruise? ____\r
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document.write( "If I get this answer correct, I will provide you with a DONATION. \n" );
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Algebra.Com's Answer #272937 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Consider the following contingency table of travelers on a cruise ship and their ages: \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "Age 1st cruise 2nd cruise 3rd cruise \n" ); document.write( "21 - 30 25 17 33 \n" ); document.write( "31 - 40 12 23 10 \n" ); document.write( "41 – 50 35 15 45 \n" ); document.write( "Total 72 55 88 \r \n" ); document.write( "\n" ); document.write( "A. If a person is selected at random, what is the probability it is his/her 2nd cruise? (total of 2nd cruise column)/(grand total) \n" ); document.write( " \n" ); document.write( "B. If a person is selected at random, what is the probability the person is either in the age group 31-40 or 41-50? (sum of those rows)/grand total) \n" ); document.write( " \n" ); document.write( "C. If a person is selected at random, what is the probability the person is either 21-30 or on his/her 2nd cruise? (sum of 21-30 and 2nd - intersection \n" ); document.write( "of that row and column)/grand total \n" ); document.write( " \n" ); document.write( "D. If two people are selected at random, what is the probability they are both on their 1st cruise? 144C2/grandtotalC2 \n" ); document.write( "=================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H.\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |