The age distribution of inmates on death row in Alabama is approximately normal with mean 43.0 years and standard deviation 9.7 years (Source: Alabama Department of Corrections).
a. What age is at the 10th percentile?
b. What age is at the 90th percentile?
c. According to the normal-curve model, what percentage of death-row inmates are under 18 years of age?
d. The death penalty is not allowed for those under the age of 18 at the time of their crime. If the death penalty were al- lowed for those people, how many would be on death row in Alabama, according to the normal curve model? There are 196 inmates on death row in Alabama.