Probability Calculator

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No of possible event that occured
No of possible event that do not occured

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Online Probability Calculator: Calculate Probabilities Effortlessly

The online probability calculator allows you to determine the probability of an event based on probabilities of other events. Enjoy the convenience of using this free tool from anywhere in the world without any cost.

Say goodbye to manual calculations and complex values as this calculator delivers accurate results in seconds. You no longer need to waste time and energy when finding probabilities, as our user-friendly calculator provides precise results quickly.

How to Use the Online Probability Calculator? Using our calculator is simple and straightforward. Whether you want to find the probability for a single event or multiple events, this online tool is perfect for you.

Probability Calculator Single Event:

  1. Access our probability calculator on SmallSEOTools.
  2. Click on the "Single" button to find the probability of a single event.
  3. Enter the number of possible outcomes.
  4. Input the number of events that occurred.
  5. Get the probability of both the event occurring and not occurring within seconds.

Probability Calculator Multiple Events:

  1. Enter the number of possible outcomes directly in the given box.
  2. Insert the number of events occurring in set A and set B in the designated boxes.
  3. Receive a comprehensive report with P(A), P(B), P(A∩B), P(A∪B), P(A’), P(B’), and P(A|B).

What Is Probability? Probability measures the likelihood of an event occurring. It is a branch of mathematics that studies random events and enables us to determine the chances of their occurrence. Probability works on logical factors and helps us understand if an event is dependent or independent of previous occurrences.

How to Calculate Probability? To calculate probability, divide the number of favorable outcomes by the total number of outcomes. For example, if you toss a coin, the probability of getting heads is 1 out of 2 (1/2 or 0.5).

Find The Probability of A Union B (A∪B)? The union of sets A and B includes all values in both sets. For example, if A = {2, 3, 5, 6, 7} and B = {2, 3, 9}, then A∪B = {2, 3, 5, 6, 7, 9}. Our Statistics Probability Calculator simplifies this process.

Find The Probability of A Intersection B (A∩B)? The intersection of sets A and B includes values that exist in both sets. For example, if A = {4, 6, 3, 8, 9} and B = {5, 6, 3}, then A∩B = {6, 3}.

 The formula for conditional probability is P(A|B) = P(A∩B) / P(B).

Enjoy the ease and accuracy of our Online Probability Calculator for all your probability calculations. No need for manual calculations anymore!