Consider the accompanying contingency table, which presents the results of an advertising survey about the use of
Question:
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a. How many customers were surveyed?
b. Why are these bivariate data? What type of variable is each one?
c. How many customers preferred to use an oilcompany card?
d. How many customers made 20 or more purchases last year?
e. How many customers preferred to use an oilcompany card and made between five and nine purchases last year?
f. What does the 80 in the fourth cell in the second row mean?
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a 850 b Two variables number of purchases and method of ...View the full answer
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