Find the Z-score for the value 79, when the mean is 81 and the standard deviation is 7. A. z= -0.29 B. z= -0.29 C. z = 0.89 D. z = -0.43
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The formula for the Z-score is: $$ z = \frac{x - \mu}{\sigma} $$ where $x$ is the value, $\mu$ is the mean, and $\sigma$ is the standard deviation. Show more…
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