Data collected at Toronto Pearson International Airportsuggests that an exponential distribution with mean value2.725 hours is a good model for rainfall duration (UrbanStormwater Management Planning with AnalyticalProbabilistic Models, 2000, p. 69).a. What is the probability that the duration of a particularrainfall 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 exceedsthe mean value by more than 2 standard deviations?What is the probability that it is less than the meanvalue by more than one standard deviation?

ST 701 Week 8 Notes and Week 9 Notes MaLyn Lawhorn October 3, 2017, October 10, 2017, and October 12, 2017 Alternative Generating Functions There are some other generating functions besides MGFs. itx p ▯ Characteristic Functiox:...