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The Graduate Record Exam (GRE) has a combined verbal and quantitative mean of 1000 and a standard deviation of 200. Scores range from 200 to
- The Graduate Record Exam (GRE) has a combined verbal and quantitative mean of 1000 and a standard deviation of 200. Scores range from 200 to 1600 and are approximately normally distributed. For each of the following problems:
- draw a rough sketch, darkening in the portion of the curve that relates to the answer, and
- indicate the percentage or score called for by the problem.
- What percentage of the persons who take the test score above 1300?
- What percentage score above 800?
- What percentage score below 1200?
- Above what score do 20% of the test-takers score?
- Above what score do 30% of the test-takers score?
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