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IQ Scores Form a Normal Distribution with µ = 100

Question 23

Multiple Choice

IQ scores form a normal distribution with µ = 100 and σ = 15.Individuals with IQs between 90 and110 are classified as average.What proportion of the population is average?


A) 0.7486
B) 0.5028
C) 0.4972
D) 0.2486

Correct Answer:

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