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Mathematics, 10.12.2020 22:00 KittyLitty

The results of a test are normally distributed. A particular student scores 57, which is 1.4 standard deviations below the mean. If the mean is 68, then what is the standard deviation? Hint: Use the formula for z-score. Round your answers to three decimals.

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The results of a test are normally distributed. A particular student scores 57, which is 1.4 standar...
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