Question: Suppose that a normal model with mean100and standard deviation13can be applied to the scores of a reference population on the Wechsler Intelligence Scale for Children

Suppose that a normal model with mean100and standard deviation13can be applied to the scores of a reference population on the Wechsler Intelligence Scale for Children (WISC).

Question 1. Whatpercentof this population have WISC scores below82.7? (NOTE that requested answer is a percent)

Question 2. Whatpercentof this population have WISC scores above134.7?

Question 3. Whatpercentof this population have WISC scores between100and117.3?

Question 4. What are the quartiles of WISC scores?

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