Seventy percent of the students at a given university come from families with annual incomes of $50 000 or more. Eighty percent of the students at this university have personality adjustment scores that indicate that they are at least slightly neurotic. If income and personality adjustment are uncorrelated (unrelated), what is the probability that a student selected at random will be both rich and neurotic?
a. (0.80) (0.70)
b. (0.80) (0.30)
c. (0.70) (0.20)
d. (0.30) (0.20)
e. (0.80) (0.20
Ans: a
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