A survey by the pwe research center ( snapshots: goals of Gen Next Vs.  Gen X,  USA today, March 27, 2007, P. 1A) indicated that 81% of 18_ to  25_ year _ olds had getting rich as a goal, as compared to 62% of 26_ of  40_ year_ olds. suppose that the survey was based on 500 respondnets  from each of the two groups.
 a. construct a contingency table.
 b. give an example of a simple event and a joint event.
 c. what is the probability that a randomly selected respondet has a goal of getting rich?
 d. what is the probability that a randomly selected respondent has a  goal of getting rich and is in the 26- to 40-year- old group?
 e. are the events " age group" and has getting rich as a goal" independent? explain