Question: Arriving at a bus stop, let the random variable T denote the amount of time in minutes you have to wait before a bus arrives.

Arriving at a bus stop, let the random variable T denote the amount of time in minutes you have to wait before a bus arrives. The pdf is given by fT(t)=e^(t/4)/4. State the expected value of T. Compute also the probability that a bus arrives within 5 minutes, giving your answer correct to at least 4 decimal places.

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