a. Graph the histogram associated with the data given in Exercise 12, page 523.
b. Find the mean and the standard deviation for these data.
Exercise 12:
DRIVING AGE REQUIREMENTS The minimum age requirement for a regular driver's license differs from state to state. The frequency distribution for this age requirement in the 50 states is given in the following table:
a. Describe a random variable X that is associated with these data.
b. Find the probability distribution for the random variable X.
c. Compute the mean, variance, and standard deviation of X.