Given Exercise proposes modeling IQ scores with N(100, 16). What IQ would you consider to be unusually high? Explain.
Exercise :
IQ. Some IQ tests are standardized to a Normal model, with a mean of 100 and a standard deviation of 16.
a) Draw the model for these IQ scores. Clearly label it, showing what the 68 - 95 - 99.7 Rule predicts about the scores.
b) In what interval would you expect the central 95% of IQ scores to be found?
c) About what percent of people should have IQ scores above 116?
d) About what percent of people should have IQ scores between 68 and 84?
e) About what percent of people should have IQ scores above 132?