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9. The boxplot displays the scores from an economics chapter test. Identify the second quartile. (I por 61 75 80 87 93 087 093 80 75 10. A sample data set has a mean of 122.3 and a standard deviation of 18.5. Convert a score of 168.4 to a z score and determine if the score is usualor “unusual. 01.23; usual D-1.23: usual 2.49. unusual -2.49: unusual

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