Question

If IQ Scores are normally distributed with a mean of 100 and a standard deviation of 15. If you randomly selected a person

from Montana, what is the probability, rounded to the hundredth, that a person will have an IQ less than 79?
Remember to use the percent sign in this question

Answer 1

8%

Explanation:

P(X<79) = normalcdf(0,79,100,15) = 0.0807567112 ≈ 0.08 ≈ 8%

Therefore, the probability, rounded to the hundredth, that a person from Montana will have an IQ less than 79 is 0.08 or 8%