Intelligence Quotient (IQ) scores are often reported to be normally distributed with μ=100.0 μ = 100.0 and σ=15.0 σ = 15.0 . A random sample of 43 43 people is taken. Step 2 of 2 : What is the probability that the mean IQ score of people in the sample is less than 99 99 ? Round your answer to 4 4 decimal places, if necessary.