조건부 확률 계산기
다른 사건이 이미 발생했을 때 사건이 발생할 확률을 계산합니다.
조건부 확률 계산기 gives you a faster way to work through practical calculation scenarios without rebuilding the same calculation from scratch every time. Start with 사건 A의 확률 (P(A)), 사건 B의 확률 (P(B)), and A와 B의 교집합 확률 (P(A and B)) and use the live outputs to estimate B가 주어졌을 때 A의 확률 (P(A|B)) and A가 주어졌을 때 B의 확률 (P(B|A)) in one pass. This page is built to help you compare scenarios quickly, validate rough assumptions, and move into a related calculator when you need a second angle on the same problem.
Use The Calculator In A Few Steps
Work through the inputs deliberately, then compare outputs instead of relying on a single scenario.
Scenario Checks
Use these examples to verify the behavior of the calculator before you run your own values.
What Users Usually Need Next
Keep the calculator open while you skim these answers so you can test the scenario that matters.
Related Calculators
These links are chosen to deepen the session and answer the next likely question without sending the user back to search.