IQ scores can be modeled by a normal distribution with = 100 and = 15, X N(100, 15). Round to four decimal places. a) Find z when an individual's IQ score is 120. b) Find the area under the standard normal curve to the left of z. c) Interpret this area in context of IQ scores. d) Use the Complement Rule to find the area to the right of z, i.e., (1 Area to the left of z) = Area to the right of z. e) Find the probability that a randomly selected IQ score is above 124. f) What percentage of all IQ scores lie between 86 and 112. g) Would it be unusual to find a person with an IQ score above 3 standard deviations or below 3 standard deviations from the mean? Explain why or why not