1. IQ scores form a normal distribution with µ = 100 and o = 15. Individuals with IQs between 90 and110 are classified as average. What proportion of the population is average? a. 0.7486 b. 0.5028 c....

Extracted text: 1. IQ scores form a normal distribution with µ = 100 and o = 15. Individuals with IQs between 90 and110 are classified as average. What proportion of the population is average? a. 0.7486 b. 0.5028 c. 0.4972 d. 0.2486 In addition to the question above. Using the same information, draw the distribution curve solve for the z-scores mark the corresponding z-scores on the curve shade in the proportion of the distribution between 90-110 determine what percentages of the population is average.