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700 students took entrance exams at university The highest score was 200 on the exam, but the average was 100 points and the standard deviation

700 students took entrance exams at university The highest score was 200 on the exam, but the average was 100 points and the standard deviation was 20 points. The rating distribution was normal. The school only admits 250 of the 700 who took oral tests. a) Mary reached 160 points. What was Maria's Z rating?

(b) How many were rated higher than Mary? Um students.

c) In order to be admitted, what did the student need to get on the exam?

about 95

about 113

about 107

about 119

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