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Some IQ tests are standardized...

Some IQ tests are standardized to a Normal model, with a mean of 100 and a standard deviation of 16. Based on the 68-95-99.7 rule, sketch the normal model for these IQ scores. Use your model to answer these questions:

a. in what interval would you expect the central 95% of IQ scores to be found?

b. About what percent of people should have IQ scores above 116?

c. about what percent of people should have IQ scores between 68-84?

d. about what percent of people should have IQ scores above 132?

a. in what interval would you expect the central 95% of IQ scores to be found?

b. About what percent of people should have IQ scores above 116?

c. about what percent of people should have IQ scores between 68-84?

d. about what percent of people should have IQ scores above 132?

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