Probability Calculator

For equally likely outcomes, divide favorable outcomes by the total number of possible outcomes. Formula: P(E) = favorable outcomes ÷ total equally likely outcomes

Enter the number of favorable outcomes: Enter the total number of possible outcomes:

Result:

Calculate Probability

For equally likely outcomes, divide favorable outcomes by the total number of possible outcomes.

Formula: P(E) = favorable outcomes ÷ total equally likely outcomes

Write the inputs in the form required by the formula and check the result with a small reference case. For equations and statistics, make sure the selected convention matches the problem you are solving.

Substitute the same inputs into the displayed formula and compare the calculated value with the result shown by the tool.

Frequently Asked Questions FAQ

What does Probability Calculator calculate?

For equally likely outcomes, divide favorable outcomes by the total number of possible outcomes.

What is the formula for Probability Calculator?

The formula used by the calculator is: P(E) = favorable outcomes ÷ total equally likely outcomes

What inputs does Probability Calculator need?

Enter the favorable outcomes and total equally likely outcomes, or the equivalent probability inputs.

How can I verify the Probability Calculator result?

Substitute the same inputs into the displayed formula and compare the calculated value with the result shown by the tool.

How should I round the Probability Calculator result?

Keep exact values such as fractions or radicals when useful, and round only the final numerical result when a decimal answer is required.

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