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3.2 Section Exercise 41
The national average for mathematics on a standardized test in 2011 was 506. Suppose that the
distribution of scores was approximately bell-shaped and that the standard deviation was
approximately 40. Round your answers to one decimal place as needed.
Part 1 out of 2
Within what boundaries would you expect 99.7% of the scores to fall?
About 99.7% of the scores should fall between
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