document.write( "Question 697006: PLEASE i need your help\r
\n" ); document.write( "\n" ); document.write( "ok im going to try to put it up that way again\r
\n" ); document.write( "\n" ); document.write( "Consider the accompanying contingency table, which presents the results of an advertising survey about the use of credit by Martan Oil Company customers.
\n" ); document.write( "Number of Purchases at Gasoline Station Last Year
\n" ); document.write( "Preferred Method of Payment 0-4 5-9 10-14 15-19 >20 sum
\n" ); document.write( "Cash 150 100 25 0 0 275
\n" ); document.write( "Oil-Company Card 50 35 115 80 70 350
\n" ); document.write( "National or Bank Credit Card 50 60 65 45 5 225
\n" ); document.write( "Sum 250 195 205 125 75 850
\n" ); document.write( " a. How many customers were surveyed?
\n" ); document.write( " b. Why are these bivariate data? What type of variable is each one?
\n" ); document.write( " c. How many customers preferred to use an oil-company credit card?
\n" ); document.write( " d. How many customers made 20 or more purchases last year?
\n" ); document.write( "i tried to put a cell in here and it wouldnt let me so this is the best i could do thanks
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Algebra.Com's Answer #429738 by lynnlo(4176)\"\" \"About 
You can put this solution on YOUR website!
A=======3525
\n" ); document.write( "B======X AND Y
\n" ); document.write( "C=====1035
\n" ); document.write( "D=====2843
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