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Mathematics, 04.03.2021 20:00 gharrell03

A standardized exam's scores are normally distributed. In a recent year, the mean test score was 1468 and the standard deviation was 319 . The test scores of four students selected at random are 1870, 1230,2200 , and 1350. Find the z-scores that correspond to each value and determine whether any of the values are unusual.

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