Chapter 8.CRE, Problem 17CRE

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:

Minimum Age (In Years)	$15$	$16$	$17$	$18$	$19$	$21$
Frequency of Occurrence	$1$	$15$	$4$	$28$	$1$	$1$

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 $X$.