Reference no: EM132461449

A department store analyzed its most recent sales and determined the relationship between the way the customer paid for the item and the price category of the item.

Cash Credit card Debit card

Less than $20 5 9 6

$20 - $100 8 21 11

More than $100 7 20 13

(a) What is the number of possible outcomes?

(b) What is the sample size?

(c) What probability of purchases paid by a debit card?

(d) Find the probability that a purchase is made by a credit card and more than $100.

(e) Determine the probability of purchases made by a credit or a debit card.

(f) A gift is given to all purchases by cash. Another gift is given to all purchases more than $20. What is the probability that a purchase is not eligible for any gift? (g) For each pair of events, check if they are mutually exclusive.

• Less than $20 and Not paid by cash
• Not paid by a credit card and Not paid by cash
• More than $100 and by cash and More than $100 and by credit