Answers Probability Calculator

What is the probability of drawing a heart from a standard deck?

This is a basic probability question because you can count favourable outcomes directly and divide by the total equally likely single-card outcomes.

Probability result

25%

Exact fraction: 1/4

Decimal: 0.25

The probability is 1/4, which is 0.25 or 25%.

A standard deck has 13 hearts out of 52 cards. That makes the probability 13 out of 52, which reduces to 1 out of 4.

Worked steps

Show your work

  1. Inputs: favorable outcomes = 13, total outcomes = 52.
  2. Formula: P(E) = favorable outcomes / total outcomes.
  3. Substitute: P(E) = 13/52.
  4. Reduce: 13/52 = 1/4.
  5. Result: The probability is 1/4, which is 0.25 or 25%.

Interactive tool

Verify the same values in the calculator

A standard deck has 13 hearts out of 52 cards. That makes the probability 13 out of 52, which reduces to 1 out of 4.

Formula

Probability model

P(E) = favorable outcomes / total outcomes

Use the model that matches the setup wording.

Probability

0%

Enter values to calculate.

Exact fraction --
Decimal --

What your result means

The explanation updates with the current inputs.

Calculation work