Discussion:
Q1: Assume that, among residents of a large Florida subdivision, the population mean age is 65 years old, the population standard deviation is 2 years, and that the age variable is distributed normally.
a What is the probability that a randomly chosen individual would be between 64 and 66 years of age?
b What is the probability that a randomly chosen individual would be less than 64 years of age?
c What is the probability that a randomly chosen individual would be either less than 64 years of age or more than 66 years of age?
d Find the specific age for which the following statement is true: The probability of being this age, or older, is 15%.