p-value Calculator

Calculate p-values from Z, t, Chi-Square, and F-statistics.

Test Statistic / Score

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Two-Tailed p-value

0

P(|X| > |1.96|)

Left-Tailed P

P(X < 1.96)

Right-Tailed P

P(X > 1.96)

Reference

This calculator uses cumulative distribution functions (CDF) to determine the area under the curve.

Left Tailed

Right Tailed

Two Tailed

Frequently Asked Questions