Question: In October 1981, the mean and the standard deviation on the Graduate Record Exam (GRE) for all people taking the exam were 489 and 126,

In October 1981, the mean and the standard deviation on the Graduate Record Exam (GRE)

for all people taking the exam were 489 and 126, respectively. What percentage of students would you expect to have a score of 600 or less? (This is called the percentile rank of 600.)

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