Test scores on the Scholastic Aptitude Test (SAT) verbal portion are normally distributed with a...

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Test scores on the Scholastic Aptitude Test (SAT) verbal portion are normally distributed with a mean score of 504. If the standard deviation of a score is 84, then we can conclude that approximately 68 percent of all scores are between 504 ? 84 and 504 + 84. That is, approximately 68 percent of the scores are between 420 and 588. Also, approximately 95 percent of them are between 504 ? 168 = 336 and 504 + 168 = 672
and approximately 99.7 percent are between 252 and 756. Oct 17 2014 12:29 PM

 

Solution ID:609160 | This paper was updated on 26-Nov-2015

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