statistics
the admissions policy at a certain university requires that incoming students score in the upper 20% on a standardized test. if the mean score on the test is 510 and the standard deviation of the scores is 80, what is the minimum score that a student can earn on the test to meet the admissions requiremnt? Scores on the test are normally distributed and are reported in intervals of 10.
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z = (score  mean)/ standard deviation
1)Refer to the zscore chart. Look up the +zscore corresponding to a pvalue of ~.8
2)Find score and round up to the nearest 10 interval.posted by TutorCat

520
posted by mad
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