Z Score Calculator

A z-score can be defined as how many standard deviations away a value X from the mean. If a value is exactly an average, z-score will be 0. Values above the mean have positive z-scores whereas values below the mean have negative z-scores.

The Z score is computed as:

$$ Z = \frac{(X-\mu)}{\sigma} $$

Here μ is the Population mean and σ is the population standard deviation. X is called as raw score.


$$ Z = \frac{(X-\mu)}{\sigma} $$

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