data/knowledge_base/probability.md

# Probability – JEE Level

## Basic Formula
P(E) = favorable outcomes / total outcomes

## Conditional Probability
P(A|B) = P(A ∩ B) / P(B)

## Bayes’ Theorem
P(A|B) = (P(B|A) × P(A)) / P(B)

## Common Mistakes
- Assuming independence without checking
- Ignoring total probability