Multiple Choice
The Intelligence Quotient (IQ) test scores are normally distributed with a mean of 100 and a standard deviation of 15. Given a class with 9 students, what is the probability that the class' average IQ score is between 85 and 115?
A) 0.4987
B) 3.00
C) 0.0026
D) 0.9974
Correct Answer:

Verified
Correct Answer:
Verified
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