🎲Probability Calculator

Frequently Asked Questions

What is a combination?

A combination is a selection of items where the order doesn't matter. For example, selecting 2 items from a set of 5 items gives you C(5,2) combinations.

What is a permutation?

A permutation is a selection of items where the order matters. For example, arranging 2 items from a set of 5 items gives you P(5,2) permutations.

What is binomial probability?

Binomial probability calculates the chance of getting exactly r successes in n trials, where each trial has probability p of success.

What's the difference between nCr and nPr?

nCr (combination) doesn't consider order, while nPr (permutation) does. For example, selecting AB is the same as BA in combinations, but different in permutations.

About Probability Calculator

Calculate various probability concepts:

🎯 Combinations
🔄 Permutations
📊 Binomial Probability