Mathematics, 21.06.2020 05:57 coltonsteighner
A standardized exam's scores are normally distributed. In a recent year, the mean test score was 1521 and the standard deviation was 314. The test scores of four students selected at random are 1920, 1290, 2220, and 1420. Find the z-scores that correspond to each value and determine whether any of the values are unusual
Answers: 1
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A standardized exam's scores are normally distributed. In a recent year, the mean test score was 152...
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