A Major Airline Keeps Track of Data on How Their

question 12

Essay

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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Definitions:

Spectator Role

A psychological state during sexual activity, where an individual becomes an observer of their own performance, which can lead to performance anxiety and sexual dysfunctions.

Erectile Problems

Difficulties in achieving or maintaining an erection sufficient for satisfactory sexual performance.

Snap Gauge Band

A device used in the assessment of erectile dysfunction, measuring the ability of the penis to enlarge and stiffen during sleep.

Female Orgasmic Problems

Sexual dysfunction in women characterized by a persistent or recurrent difficulty achieving orgasm after adequate sexual arousal and stimulation.