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Normal Distribution Calculator

Statistics

Calculate the probability density and cumulative probability for a value in a normal distribution.

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-1,000,0001,000,000
-1,000,0001,000,000
01,000,000

Cumulative Probability (P(X ≤ x))

0.6915

Probability that a randomly drawn value is less than or equal to x

Z-Score

0.500

Standardized z-score for the value

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Odeh Ahwal

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Odeh Ahwal
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Frequently Asked Questions

What is the 68-95-99.7 rule?

In a normal distribution, about 68% of values fall within 1 standard deviation of the mean, 95% within 2, and 99.7% within 3.

How is this different from z-score-calculator?

That tool just standardizes a value; this also converts the z-score into a cumulative probability.

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