# Z-Score Calculator

You can use this Z-Score Calculator to calculate the standard normal score (z-score) based on the raw score value, the population mean, and the standard deviation of the population.

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How to use the calculator
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- Enter the raw score value
- Enter the mean, standard deviation, and click the "Calculate" button to see the results.

## Z-Score Formula

The Z-Score Calculator uses the following formula:

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z = (x - μ) / σ
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Where:
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z
is the standard score or Z-score,
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x
is the raw score to be standardized,
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μ
is the mean of the population,
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σ
is the standard deviation of the population.
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Z-Score Calculation Example:
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The mean of a dataset is 20 and the standard deviation is 7. Find the z-score for a value of 6.

x = 6, μ = 20, σ = 7

z = (6 - 20) / 7

z = -14 / 7 = -2

z = -2