Question

You call the Treasury trying to solve your problem with the payment of the economic incentive. The time that you have to let the phone ring to be answered follows an exponential distribution with an average of 35 minutes.

a) If your next virtual meeting is in 20 minutes, what is the probability that they will answer your call before you have to hang up?

b) If you spent 40 minutes on the phone yesterday and you did not get any assistance, what is the probability that today you will be seen in less than 20 minutes?

c) How long do the 10% of people who wait less wait?

d) If 200 people call for help during a day, what is the probability that the waiting time for the 200 people is less than 30 minutes?

Answer 1

The solution to this problem is given by