SOLUTION: Bob takes an online IQ test and finds that his IQ according to the test is 134. Assuming that the mean IQ is 100, the standard deviation is 15, and the distribution of IQ scores is

Algebra ->  Probability-and-statistics -> SOLUTION: Bob takes an online IQ test and finds that his IQ according to the test is 134. Assuming that the mean IQ is 100, the standard deviation is 15, and the distribution of IQ scores is      Log On


   



Question 454580: Bob takes an online IQ test and finds that his IQ according to the test is 134. Assuming that the mean IQ is 100, the standard deviation is 15, and the distribution of IQ scores is normal, what proportion of the population would score higher than Bob? Lower than Bob?
Answer by edjones(8007) About Me  (Show Source):
You can put this solution on YOUR website!
z=(134-100)/15
=2.267
By finding the area under the curve for the z we find that .0117 score higher and .9883 score lower in the population.
.
Ed