Probability

  

Three messenger services deliver to a small town in Oregon. Service A has 60% of all the scheduled deliveries, service B has 30%, and service C has the remaining 10%. Their on-time rates are 80%, 60%, and 40% respectively. Define event O as a service delivers a package on time.

Calculate P(A and      O).
Calculate the      probability that a package was delivered on time.
If a package was      delivered on time, what is the probability that it was service A?
If a package was      delivered 40 minutes late, what is the probability that it was service B?
If a package was      delivered 40 minutes late, what is the probability that it was service C?

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