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The scores on a test approximate a normal distribution with a mean score of 72 and a standard deviation of 9. What percent of students
The scores on a test approximate a normal distribution with a mean score of 72 and a standard deviation of 9. What percent of students received a score greater tha 90 or less than 54?
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Economics
Authors: Roger A. Arnold
12th edition
978-1305758674, 1305758676, 978-1285738321
