Multiple Choice
The normal distribution has a greater percentage of its area close to the mean and much less in the tails.
-Assume that adults have IQ scores that are normally distributed with a mean of 100 and a standard deviation of 15 (as on the Wechsler test) . Find the probability that a randomly selected adult has an IQ between 90 and 120
(somewhere in the range of normal to bright normal) .
A) 0.6227
B) 0.6568
C) 0.6014
D) 0.6977
Correct Answer:
Verified
Correct Answer:
Verified
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