SAT Scores The national average for mathematics on a standardized test in

2011

was

527

. Suppose that the distribution of scores was approximately bell-shaped and that the standard deviation was approximately

42

. Round your answers to at least one decimal place as needed.

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Part 1 of 2

(a) Within what boundaries would you expect

68%

of the scores to fall?

About

68%

of the scores should fall between

and

.