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Mathematics 20 Online
OpenStudy (anonymous):

on an auto mechanic aptitude test the mean score is 270points and the standard deviation is 35points. is a student has standardized score of 1.9, how many points is that? if a student has a standardized score of -0.25, how many points us that? Assuming the scores follow a normal distribution, what is the probability that a student will get between 200 and 340 points?

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