A consumer agency randomly selected 1700 flights for two major airlines, A and B. The following table gives the two-way classification of these flights based on airline and arrival time. “less than 30 minutes late” includes flights that arrived early or on time.
a. Suppose one flight is selected at random from these 1700 flights. Find the following probabilities.
i. P(more than 1 hour late and airline A)
ii. P(airline B and less than 30 minutes late)
b. Find the joint probability of events “30 minutes to 1 hour late” and “more than 1 hour late.” Is this probability zero? Explain why or why not.

  • CreatedAugust 25, 2015
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