5 Assume that the Selway River data are normally distributed. Find the following: a. Peak flow of the 100-year flood b. Peak flow of the 50-year flood c. The probability

that the flood will be less than or equal to 40,000 cfs d. The return period of the 40,000-cfs flood. . Assume that the Selway River data are log normally distributed. Find the following: a. Peak flow of the 100-year flood b. Peak flow of the 50-year flood c. The probability that a flood will be less than or equal to 40,000 cfs d. The return period of the 40,000-cfs flood