PMF Geométrica

(1−p)^(k−1)·p.
Created by
Renato Passos, Eng. de Software
Reviewed by
Renato Passos, Eng. de Software

Last updated: Apr 18, 2026

P(X=k)
0,1470

About this calculator

The Geometric PMF Calculator is a useful tool for calculating the probability mass function (PMF) of a geometric distribution. This distribution is commonly used to model the probability of an event occurring in a given number of attempts.

The underlying formula for this calculator is (1 - p)^(k - 1) · p, where p is the probability of success in one attempt and k is the number of attempts. This formula can be used to calculate the probability of an event occurring in k attempts, given that the probability of success in each attempt is p.

The Geometric PMF Calculator is ideal for cases where you need to calculate the probability of an event occurring in a specific number of attempts. For example, you can use it to calculate the probability of a player getting a certain number of cards in a game of cards.

Frequently asked questions

What is the geometric distribution?

The geometric distribution is a probability distribution that describes the probability of an event occurring in a given number of attempts, given that the probability of success in each attempt is constant.

When to use the Geometric PMF Calculator?

Use the Geometric PMF Calculator when you need to calculate the probability of an event occurring in a specific number of attempts, such as in games of chance or scientific experiments.

What is the probability of success (p)?

The probability of success (p) is the probability of the event occurring in one attempt. It must be a value between 0 and 1.

How to calculate the probability of success in a specific number of attempts?

To calculate the probability of success in a specific number of attempts, simply use the formula (1 - p)^(k - 1) · p, where p is the probability of success in one attempt and k is the number of attempts.

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