Complement Probability Calculatorसूत्र

## How to Calculate Complement Probability

### Formula

**P(A') = 1 - P(A)**

The complement of an event A includes all outcomes where A does not happen. Since all probabilities must sum to 1, the complement is simply 1 minus the event probability. This is often useful for "at least one" problems where computing the direct probability is complex.

हल किया गया उदाहरण

The probability of rain is 0.35. What is the probability it does not rain?

  1. P(rain) = 0.35
  2. P(no rain) = 1 - 0.35 = 0.65
  3. As a percentage: 65%
  4. Odds against rain: 0.65 / 0.35 ≈ 1.857