IQ test scores are normally distributed with a mean of 100 and a standard deviation of 15. Find the IQ score that corresponds to a z-score of 1.96.
A)129.4
B)115.6
C)122.4
D)132.1

Question

Quizplus · Accepted Answer

To find the IQ score corresponding to a z-score of 1.96, use the formula: IQ = mean + (z-score * standard deviation). Plugging in the values: IQ = 100 + (1.96 * 15) = 129.4.

IQ Test Scores Are Normally Distributed with a Mean of 100