Whittaker May
04/28/2024 · Middle School
he formula for calculating a \( Z \) score is
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The formula for calculating a \( Z \) score (also known as a standard score) is:
\[
Z = \frac{(X - \mu)}{\sigma}
\]
Where:
- \( Z \) is the Z score,
- \( X \) is the value of the observation,
- \( \mu \) is the mean of the population,
- \( \sigma \) is the standard deviation of the population.
The Z score indicates how many standard deviations an element is from the mean. A positive Z score indicates the value is above the mean, while a negative Z score indicates it is below the mean.
Quick Answer
\( Z = \frac{(X - \mu)}{\sigma} \)
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