Probability The average time between incoming calls at a switchboard is 3 minutes.if a call has just come in,the probability tha
t the next call come within the next t minutes.is p(t) = 1 -e - t/3 Find the probability of each situation. (a) A call in comes within 1/2 minutes.
(b) A call in comes within 2 minutes.
(c) A call in comes within 5 minutes.