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Of 10,000 students at a college, 2,500 have a Mastercard (M), 4,000 have a VISA (V) and 1,000 have both.

a. Find the probability that a randomly selected student

(1) Has a Mastercard
(2) Has a VISA
(3) Has both credit cards.

b. Construct and fill in a contingency table summarizing the credit card data. Employ the following pairs of events: M and , V and .

c. Use the contingency table to find the probability that a randomly selected student

(1) Has a Mastercard or a VISA
(2) Has neither credit card.
(3) Has exactly one of the two credit cards.

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Statistics and Probability, Statistics

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