Probability Calculator

Free probability calculator online. This calculator can calculate the probability of two events, as well as that of a normal distribution. A probability calculator helps you to find the probability of normal or conditional events. Find the relationship of likelihood between two events. A probability calculator is an online tool that computes the probability of a selected event based on the probability of other events.


Probability Calculator Online

A probability calculator is a tool that can be used to determine the probability of a specific event or set of events occurring. It can take various forms, such as a physical calculator or a software program, and can be used to calculate probabilities for a variety of applications, including statistics, gambling, and risk management. Some probability calculators can also be used to generate random numbers or simulate probability distributions.


What are the 3 types of probability?

There are three main types of probability:

  1. Classical probability: This type of probability is based on the concept of equally likely outcomes. It is used when the number of possible outcomes is finite and can be counted. For example, the probability of flipping a coin and getting heads is 1/2 or 50%.

  2. Empirical probability: This type of probability is based on the relative frequency of an event occurring in a large number of trials. For example, if a die is rolled 100 times and the number 3 comes up 20 times, the empirical probability of rolling a 3 is 20/100 or 20%.

  3. Subjective probability: This type of probability is based on an individual's personal judgment or belief about the likelihood of an event occurring. It is often used when the outcomes of an event are uncertain or not easily quantifiable. For example, the probability of winning a political election can be difficult to quantify, so it may be based on an individual's personal assessment of the candidate's chances.

It's important to note that, while the three types of probability have some differences, they all provide a way to quantify the likelihood of an event occurring.


How to calculate the probability?

Probability is the chance that a given event will occur. Use this online probability calculator to calculate the single and multiple event probability based on the number of possible outcomes and events that occurred.

Probability can be calculated using the following formula:

Probability of an event occurring = (Number of favorable outcomes) / (Total number of possible outcomes)

For example, if you flip a coin, there are two possible outcomes (heads or tails) and only one of them is favorable (let's say heads), the probability of getting heads would be 1/2 or 50%.

Another way to calculate the probability is by using the formula:

Probability of A and B happening = Probability of A happening * Probability of B happening, given that A has already happened.

It's important to note that the probabilities of all possible outcomes in a given situation must add up to 1.

It's also possible to use Bayes' theorem to calculate the probability of an event occurring, given that another event has already occurred.

It's also important to note that probability ranges from 0 to 1 (0% to 100%) and an event with probability 0 will never occur and an event with probability 1 will definitely occur.