Although more than 2 percent of the population have IQs below 70, only about 1 percent of people are diagnosed as mentally retarded at any one point in time. Explain this discrepancy.

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The Answer of Although more than 2 percent of the population have IQs below 70, only about 1 percent of people are diagnosed as mentally retarded at any one point in time. Explain this discrepancy.

Although More Than 2 Percent of the Population Have IQs