Mathematics, 09.02.2021 01:20 smartie80
On a standardized exam, the scores are normally distributed with a mean of 69 and a standard deviation of 20. Find the z-score of a person who scored 89 on the exam.
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Define multiplicative inverse. give an example of a number and its multiplicative inverse.
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Jack did 3/5 of all problems on his weekend homework before sunday. on sunday he solved 1/3 of what was left and the last 4 problems. how many problems were assigned for the weekend?
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On a standardized exam, the scores are normally distributed with a mean of 69 and a
standard deviat...
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