Problem
Adult IQ scores have a bell-shaped distribution with mean of 100 and a standard deviation of 15. Use the Empirical Rule to find the percentage of adults with scores between 70 and 130.
If 250 adults are randomly selected, about how many of them an IQ have between 85 and 130?
The response should include a reference list. Double-space, using Times New Roman 12 pnt font, one-inch margins, and APA style of writing and citations.