Question 184491
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.
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81 is 31 above the verbal ability test Mean of 50.
31 is (31/20) =  1.5
So 81 is 1.5 standard deviations above the mean score for verbal ability
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For the quantitative ability test, the mean for people in general is 0 and the standard deviation is 5.
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6.4 is 6.4 above the quantitative ability Mean of 0
6.4  is 6.4/5 = 1.28 standard deviations above the mean of quan. abil. test.
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Which is this person’s stronger ability: verbal or quantitative? 
Ans: Verbal
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Explain your answer to a person who has never had a course in statistics.
I'll leave that to you.
Cheers,
Stan H.