Probability Calculator is simple and easy to use. There are no strict rules you need to follow to find the probability using this online conditional probability calculator.

### Probability Calculator

### About the online probability calculator

online probability calculator allows you to determine the probability of an event based on the probability of other events. The free online tool can be used from anywhere in the world without paying any fees. The

online tool allows you to quickly explore the relationship between two separate events. You no longer need to do the calculations yourself, as the online tool gives you accurate results in just a few seconds.

Moreover, you don’t need to waste energy and time calculating complex values â€‹â€‹to find the probability. Our number cruncher permits you to split away from customary techniques for working out likelihood and come by exact outcomes rapidly.

### How to use the online probability calculator?

calculator is simple and easy to use. There are no strict rules you need to follow to find the probability using this online conditional probability calculator.

**You can use this tool in two ways:** Whether you want to know the probability of a single event or multiple events, this empirical probability calculator is your best option.

#### Single Event Probability Calculator

- Visit MySmallTools‘ Probability Calculator.

To find out the probability of a single event, click on the “Single” button. - Enter the number of possible outcomes in the Single Event Probability Calculator.
- After you enter the possible outcomes, enter the number of events that occurred.
- And that’s it! Within a few seconds you will know the probability of an event occurring and the probability of an event not occurring.

#### Multiple Events Probability Calculator

If you want to find out the probability of multiple events, our tool is the best option you can find on the Internet. To find the probability of multiple events, you need to follow these steps:

- Enter the number of possible outcomes directly in the designated fields.
- Insert the number of events occurring in set A and set B in the designated fields.
- As a result, you will receive a comprehensive report containing P(A), P(B), P (Aâˆ©B), P(AâˆªB), P(A`), P(B`) and P (A | B).

### What is Probability?

Probability measures the chances of an event occurring, that is, whether it will happen or not. You might have the idea that probability is a branch of mathematics related to the study of random occurrences. We already know that the outcome of a random event cannot be predicted until it happens, but using probability, we can determine the likelihood of this event occurring.

Probability is based on logical factors and allows us to know whether the probability of an event occurring is high or low. We can also know through probability whether the event is dependent or independent of previous events.

#### How do you calculate probability?

To calculate probability, you need to break down a problem into individual probabilities and multiply them by the probability of the events occurring together. You can find out probability by following the simple steps we have outlined here.

- Dissect the likelihood of an occasion that has somewhere around one potential result. For example, determine whether the possible outcomes of a coin toss are heads or no heads.
- Now, find the total number of outcomes of the event measured in the last step. In our coin toss example, the total number of outcomes is 2, i.e. heads and tails.
- Finally, divide the probability of the event occurring by the total number of outcomes. Continuing with our running example, the number of possible heads after a coin toss is 1 and the total number of outcomes is 2. Hence, the probability of heads can be calculated as 1/2 = 0.5.

##### Find the Probability of A Union B (AUB)?

Simply put, the union of sets A and B is the collection of all values â€‹â€‹in both sets. The association of An and B can be addressed as AâˆªB. To understand how association works, let’s look at an example.

A = {2, 3, 5, 6, 7}

B = {2, 3, 9}

AâˆªB in this example becomes AâˆªB = {2, 3, 5, 6, 7, 9. }

However, the easiest way to avoid manual calculations is to use a statistical probability calculator.

##### What is the probability of intersection B (Aâˆ©B)?

The intersection of A and B finds all the similar values â€‹â€‹that occur in both set A and set B. The crossing point of set An and set B is signified by (Aâˆ©B).

To understand intersection, an example would be:

A = {4, 6, 3, 8, 9}

B = {5, 6, 3}

The values â€‹â€‹that occur in both sets are 6 and 3. Hence, A âˆ©B = {6,3}

##### Track down the restrictive likelihood of An and B: P (A | B)

Conditional probability can be measured by calculating the probability of event A given that event B has occurred. The following probability formula helps us to calculate the conditional probability of A and B.

P(A|B) = P(Aâˆ©B) P(B).