Z-Score Calculator
Compute standard score Z = (X - μ) / σ, normal distribution probabilities, and percentile ranks
Z-Score Calculator
Compute standard score Z = (X - μ) / σ, normal distribution probabilities, and percentile ranks.
About Z-Score Calculator
Compute Z-scores from raw scores, population mean, and standard deviation. Includes normal CDF probability P(Z < z) and percentile ranks.
How to Use Z-Score Calculator
- 1Enter raw score X, mean μ, and standard deviation σ.
- 2View calculated Z-score and percentile rank.
- 3Copy Z-score summary.
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