SAT Scores The national average for mathematics on a standardized test in 2011 was 509. Suppose that the distribution of scores was approximately bell-shaped and that the standard deviation was approximately 40. Round your answers to at least one decimal place as needed. Part: 0 / 2 Part 1 of 2 (a) Within what boundaries would you expect 95% of the scores to fall? About 95% of the scores should fall between and