For questions 3-5, (a) show all of the steps in your calculations, (b) indicate the z-scores at the bottom of the distribution, (c) shade in the appropriate area of the distribution, and (d) write your answer in the space provided) 3. Assuming IQ scores are normally distributed in the population with a mean (u) of 100 and a standard deviation (o) of 16, what percentage of IQ scores are... a. less than 124? b. less than 907 c. between 110 and 130? d. What IQ will place you in the top 8% of the population