Question: Psychology. A test devised to measure aggressive- passive personalities was standardized on a large group of people. The scores were normally distributed, with a mean of 50 and a standard deviation of 10. If we want to designate the highest 10% as aggressive, the next 20% as moderately aggressive, the middle 40% as average, the next 20% as moderately passive, and the lowest 10% as passive, what ranges of scores will be covered by these five designations?