IQ test scores are normally distributed with a mean of 96 and a standard deviation of 12. An individual's IQ score is found to be 110. Find the z-score corresponding to this value.
A) 1.17
B) -1.17
C) 0.86
D) -0.86

Question

Quizplus · Accepted Answer

The z-score is calculated using the formula: z = (X - μ) / σ, where X is the score, μ is the mean, and σ is the standard deviation. For an IQ score of 110, z = (110 - 96) / 12 = 14 / 12 = 1.17.

IQ Test Scores Are Normally Distributed with a Mean of 96