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Uniform distribution and joint probabiliy

The probabilities of the events A and B are .20 and .30, respectively. The probability that both A and B occur is .15. What is the probability of either A or B occurring?

America West Airlines reports the flight time from Los Angeles International Airport
to Las Vegas is 1 hour and 5 minutes, or 65 minutes. Suppose the actual flying time is uniformly distributed between 60 and 70 minutes.

A. Show a graph of the continuous probability distribution.
B. What is the mean flight time? What is the variance of the flight times?
C. What is the probability the flight time is less than 68 minutes?
D. What is the probability the flight takes more than 64 minutes?

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Solution Summary

Two questions; one on a joint probability question and another on a uniform distribution.