(probability)The probability that telephone call will last less than T minutes can be approximated by the exponential probability function:
probability that a call last less than T minutes = 1-(e*-t/a)
A is the average call length.
E is Euler's number (2.71828).
For example,assuming theaverage call length is 2 minutes,the probability that a call will last less than 1 minute is calculates as 1-e-1/2 = 0.3297. Using this probability equation,write a C++ program that calculates and displays a list of probabilities of a call lasting less than 1 minute to less than 10 minutes,in 1 minute increments.