Refer to Exercise 102. Suppose that 50% of the overnightparcels are sent via express
Chapter 2, Problem 103(choose chapter or problem)
Refer to Exercise 102. Suppose that 50% of the overnightparcels are sent via express mail service E2 and the remaining10% are sent via E3. Of those sent via E2, only 1% arrivelate, whereas 5% of the parcels handled by E3 arrive late.a. What is the probability that a randomly selected parcelarrived late?b. If a randomly selected parcel has arrived on time, whatis the probability that it was not sent via E1?
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