A person scores 81 on a test of verbal ability and 6.4 on a test of quantitative ability. For the verbal ability test ...

     15. A   person scores 81 on a test of verbal ability and 6.4 on a test of   quantitative   ability. For the verbal   ability test, the mean for people in general is 50 and the   standard deviation is 20. For   the quantitative ability test, the mean for people in   general is 0 and the standard   deviation is 5. Which is this person’s stronger ability:   verbal or quantitative?   Explain your answer to a person who has never had a   course in statistics.