Data collected at Toronto Pearson International Airport suggests that an exponential distribution with mean value 2.725 hours is a good model for rainfall duration. What is the probability that the duration of a particular rainfall event at this location is at least 2 hours? At most 3 hours? Between 2 and 3 hours? b. What is the probability that rainfall duration exceeds the mean value by more than 2 standard deviations? What is the probability that it is less than the mean value by more than one standard deviation?

(a) Solve the problem.

(b) Using Desmos or R, plot the normal distribution that appears in your problem.

(c) Using your plot from above, illustrate each part of your solution graphically.

I solved the problem I just need help with problem B and C