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Mary obtained a Mathematics score of 618 on the SAT; the SAT scores had a mean of 466 and a standard deviation of 108. Her

Mary obtained a Mathematics score of 618 on the SAT; the SAT scores had a mean of 466 and a standard deviation of 108. Her Mathematics score on the PSAT (Preliminary Scholastic Aptitude Test) was 54; the PSAT scores had a mean of 38 and a standard deviation of 10. Determine Mary's zscore for the PSAT (to the nearest 0.1)

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