Calculadora de Probabilidad Gratis

Calcula probabilidades de eventos simples y compuestos. Herramienta gratuita y fácil de usar.

Probability

0.300000

Probability Pct30.00%
Odds For0.4286
Odds Against2.3333

Fórmula

How to Calculate Probability

Formula

P(event) = Favorable Outcomes / Total Outcomes

Probability ranges from 0 (impossible) to 1 (certain).

Odds

  • Odds in favor = favorable / unfavorable
  • Odds against = unfavorable / favorable
  • Ejemplo Resuelto

    A bag has 10 marbles: 3 red, 7 blue. What is the probability of drawing a red marble?

    1. 01P(red) = 3 / 10 = 0.3
    2. 02As a percentage: 30%
    3. 03Odds in favor: 3 / 7 ≈ 0.4286
    4. 04Odds against: 7 / 3 ≈ 2.3333

    Preguntas Frecuentes

    What is probability?

    Probability is a measure of how likely an event is to occur. It is calculated as the number of favorable outcomes divided by the total number of possible outcomes.

    What is the difference between probability and odds?

    Probability is favorable/total (ranges 0 to 1). Odds are favorable/unfavorable (can be any positive number). Probability of 0.75 means odds of 3:1 in favor.

    Aprender

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