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On a recent quiz, the class mean was 77 with a standard deviation of 4.9. a. Calculate the Z-score for a person who received score

On a recent quiz, the class mean was 77 with a standard deviation of 4.9. a. Calculate the Z-score for a person who received score of 66. Z = Round to 2 decimal places. b. Is a quiz score of 66 considered unusual? O Unusual O Not Unusual

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