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A major airline keeps track of data on how their passengers redeem frequent flyer miles. They found that in the last year 58% of passengers redeemed them to purchase tickets for domestic travel, 44% redeemed them to purchase tickets for international travel, and that 16% redeemed them to purchase tickets for both domestic and international travel.
a. What is the probability that a passenger redeemed frequent flyer miles to purchase a ticket for domestic or international travel?
b. What is the probability that a passenger did not redeem frequent flyer miles to purchase a ticket for domestic or international travel?
c. Are two events D ={redeeming miles to purchase a ticket for domestic travel} and I ={redeeming miles to purchase a ticket for international travel} disjoint (or mutually exclusive)? Explain.
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