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A standardized exam's scores are normally distributed. In a re
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A standardized exam's scores are normally distributed. In a recent year, the mean test score was 1494 and the standard deviation was 315. The test scores of four students selected at random are 1900,1250, 2200, 1380, , , and . Find the z-scores that correspond to each value and determine whether any of the values are unusual.

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A standardized exam's scores are normally distributed. In a recent year, the mean test score was 1494 and the standard deviation was 315. The test scores of four students selected at random are 1900,1250, 2200, 1380, , , and . Find the z-scores that correspond to each value and determine whether any of the values are unusual.
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Question Text
A standardized exam's scores are normally distributed. In a recent year, the mean test score was 1494 and the standard deviation was 315. The test scores of four students selected at random are 1900,1250, 2200, 1380, , , and . Find the z-scores that correspond to each value and determine whether any of the values are unusual.
TopicAll Topics
SubjectStatistics
ClassClass 11