Normal distribution-standard deviation and mean

Reference no: EM1392568

If IQ scores on a Stanford-Binet Test are basically distributed with the mean of 100 and a standard deviation of 15, then about how many people in a randomly chosen million would be expected to score at 160 or above? (This was at one time the break off score for the "genius" designation.)

a) 47

b) 32

c) 16

d) 5

e) None of the above

Reference no: EM1392568

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