ISMT111 Problem Set #3 (1) In one western state, it is required that every prospective newly licensed driver take (but not necessarily pass) a course in driver training prior to taking the driver’s license test. It is known that eighty percent of those who take the driver training course pass it. Further, the probability of passing the driver’s license test given that the driver training course is passed is 0.98 while the probability of failing the driver’s license test given that the driver training course is failed is just 0.70. A randomly selected individual from this state has just passed the driver’s license test. What is the probability that this person passed the required driver training course? (2) A department store has 2 employees who handle customer complaints. Employee A works faster and handles 60% of all customer complaints, but 15% of the customers who talk to employee A leave the store unsatisﬁed. Employee B handles only 40% of all customer complaints, but only 5% of the customers who talk to employee B leave the store unsatisﬁed. A customer has
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