All pastes #509000 Raw Edit

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·published 2007-05-25 07:35 UTC
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Scholastic Aptitude Test (SAT) scores are normally distributed with a mean of 500 points and a standard deviation of 100 points. You take the SAT and several weeks later you receive a letter telling you that your results on the Math test were in the 90th percentile.

Recalling that SAT scores are always expressed as multiples of 10, how many points did you get on the test?
  		A. 	630
  		B. 	590
  		C. 	600
  		D. 	130
  		E. 	690