Question:
A telephone company determines that the duration t, in
Last updated: 8/7/2022
A telephone company determines that the duration t, in minutes, of a phone call is an exponentially distributed random variable with a probability density function f(t) = 3 e 3t, 0≤t<∞o. Find the probability that a phone call will last no more than 1.5 min. The probability is __