2. Someone claims that the waiting time, in minutes, between hits at a certain website has an exponential distribution with parameter λ = 1. a. Let X be the waiting time until the next hit. If the claim is true, what is P(X ≥ 5)? b. Based on the answer to part (a), if the claim is true, is five minutes an unusually long time to wait? Explain.

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2. Someone claims that the waiting time, in minutes, between hits at a certain website has an
exponential distribution with parameter λ = 1.
a. Let X be the waiting time until the next hit. If the claim is true, what is P(X ≥ 5)?
b. Based on the answer to part (a), if the claim is true, is five minutes an unusually long
time to wait? Explain.
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