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Both calculators run independently — change the inputs on either side to compare results.

Hypergeometric Probability Calculator

Calculate the exact probability of drawing exactly k successes from a finite population without replacement. Ideal for quality control sampling, card game odds, and any scenario where items are not returned to the pool after selection.

Population Size (items)

Success States in Population (items)

Sample Size (draws)

Observed Successes (successes)

Fill in the required fields to see your result.

Probability

Conditional Probability Calculator

Apply Bayes' theorem to find conditional probabilities, intersections, and unions of two events. Useful in medical testing, risk analysis, and machine learning evaluation.

P(A) - Probability of Event A

P(B) - Probability of Event B

P(B|A) - Probability of B given A

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Key differences

	Hypergeometric Probability Calculator	Conditional Probability Calculator
Category	Probability	Probability
Inputs required	4	4
Result	Probability	Probability
What it does	Calculate the exact probability of drawing exactly k successes from a finite population without replacement. Ideal for quality control sampling, card game odds, and any scenario where items are not returned to the pool after selection.	Apply Bayes' theorem to find conditional probabilities, intersections, and unions of two events. Useful in medical testing, risk analysis, and machine learning evaluation.