IQ scores

IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. What percentage of the population scores higher than 125 on an IQ test?

Final Answer:

p =  4.78 %

Step-by-step explanation:

μ=100 σ=15  N(IQ>125, μ, σ)= 0.0478  p=100 0.0478=4.78%

Use the normal distribution table.



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