The life spans of a species of fruit fly have a bell-shaped…
The life spans of a species of fruit fly have a bell-shaped distribution, with a mean of 33 days and a standard deviation of 4 days. Find the z-scores of the following life spans: 34 days and 42 days. Are either of these values unusual? The life spans of three randomly selected fruit flies are 21 days, 41 days, and 25 days. Using the Empirical Rule (68-95-99.7 Rule), find the percentile that corresponds to each life span.