What is the probability that at least four will be closed

Reference no: EM131426433

Travel and Transportation

Because of forced spending cuts in Spring 2013, the Federal Aviation Administration identified 149 air traffic control towers that would be closed. In a group of 20 air traffic control towers in the Midwest, five will be closed. Suppose six of the 20 air traffic control towers are selected at random.

a. What is the probability that none of the six air traffic control towers will be closed?

b. What is the probability that at most two of the air traffic control towers will be closed?

c. What is the probability that at least four will be closed?

Reference no: EM131426433

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