Normal Distribution Calculator
Calculate probabilities for the Gaussian (bell curve) distribution.
Distribution Parameters
Center of the distribution
Spread of the distribution
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Probability
0 %
P(X < 85)
Distribution Curve
Z-Score (x₁)
0
Probability
0
1 in X
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Documentation
Normal Distribution
The normal distribution is completely defined by its mean (μ) and standard deviation (σ). It's symmetric, with 50% of values above and below the mean.
Z-Score
CDF
Frequently Asked Questions
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