One day a store tracked the way shoppers paid for their purchases. Their data ar

Question

One day a store tracked the way shoppers paid for their purchases. Their data are summarized in the table. Total 40 60 100 Check Charge Cash 20 15 35 12 Male Female Total 12 20 45 a. What percent of the men paid cash? Show the fraction and percentage. (+2) b. What is the conditional relative frequency distribution of payment method for women? (+2) C. If you wanted to show the association between gender and method of payment visually, what kind of graph would you make? (Just name one.) d. Is there evidence of an association between gender and method of payment? Explain. (+2)

Explanation / Answer

a) P(Men paid cash) = 20/100 = 0.2 = 20%

b) P(Cash / Women) = 15/60 = 0.25 = 25%

P(check/women) = 12/60 = 1/5 = 0.2 = 20%

P(Charge/Women) = 33/60 = 0.55

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