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Whats the z-score for 1280 What's the z-score for 2240 What's the z-score for 1430 Astandardized exam's scores are normally distributed. In a recent year.

Whats the z-score for 1280

What's the z-score for 2240

What's the z-score for 1430

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Astandardized exam's scores are normally distributed. In a recent year. the mean test score was 1532 and the standard deviation was 318. The test scores of four students selected at random are 1940. 1280'. 2240. and 1430. Find the zscores that correspond to each value and detennine whether an].r of the values are unusual. The zscore for 1940 is 1.23. (Round to two decimal places as needed.) The zscore for 1280 is D. (Round to two decimal places as needed]

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