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In 2013, approximately 1.6 million students took the Critical Reading
portion of the SAT exam. The mean score, the modal score, and the
standard deviation were calculated to be 496, 430, and 115, respectively.
Which interval reflects 95% of the Critical Reading scores?
(1) 430 + 115
(3) 496 - 115
(2) 430 + 230
(4) 496 + 230