The life spans of a species of fruit fly have a bell-shaped distribution, with a mean of 35 days and a standard deviation of 5 days. (b) The life spans of three randomly selected fruit flies are 30 days, 40 days, and 25 days. Using the Empirical Rule, find the percentile that corresponds to each life span. (a) The z-score corresponding a life span of 40 days is (Type an integer or a decimal rounded to two decimal places as needed.) The z-score corresponding a life span of 33 days is (Type an integer or a decimal rounded to two decimal places as needed.) The z-score corresponding a life span of 50 days is (Type an integer or a decimal rounded to two decimal places as needed.) Select all of the life spans that are unusual. A. 40 days B. 33 days C. 50 days D. None of the life spans are unusual. (b) Determine the percentiles using the Empirical Rule. The 30 day fruit fly corresponds to a percentile of The 40 day fruit fly corresponds to a percentile of The 25 day fruit fly corresponds to a percentile of (Round to the nearest whole number as needed.)