Mathematics
Mathematics, 19.03.2020 16:39, 224509

A normal distribution of data has a mean of 90 and a standard deviation of 18. What is the approximate z-score for the value 64?
–3.6
–1.4
1.4
3.6

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A normal distribution of data has a mean of 90 and a standard deviation of 18. What is the approxima...

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