The duration of a phone call is modeled by using an exponential random variable with variance...

The duration of a phone call is modeled by using an exponential random variable with variance 4.5 hours2. If the duration of the phone call has already lasted for 9 minutes, then what is the probability that the duration of the phone call will last at least 65 minutes?

Expert Solution

The probability that the duration of the phone call will last at least 65 minutes given that the call has already lasted for 9 minutes is 0.64410.

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orchestra answered 1 year ago

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The duration of a phone call is modeled by using an exponential random variable with variance...

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