What you provide
What you provide
- Success probability, using the same scenario as the other inputs
- Trial of first success, using the same scenario as the other inputs
MATH / PROBABILITY DISTRIBUTIONS
Geometric Distribution Probability Calculator
Calculate the probability that the first success occurs on a specified independent trial. Review the equation, substituted values, result, assumptions, and interpretation in one focused workspace.
- 01 Calculated in this tab
- 02 Values stay in this browser tab
- 03 Use boundary
Use boundary
Calculation path
Calculate the probability that the first success occurs on a specified independent trial. The page evaluates the displayed equation from your supplied values and presents both symbolic and substituted KaTeX working so the arithmetic can be checked.
Calculation path
P(X=n)=(1-p)^(n-1)p
What you receive
What you receive
- Probability P(X=n) from the stated equation
- A symbolic formula plus substituted working with your values
- Visible assumptions, field guidance, and an authoritative learning reference
Use boundary
Choose the maximum decimal places shown. This does not increase source accuracy.
Trials are independent with a constant success probability.
Use internally consistent units and retain extra precision when carrying the result into another calculation.
Reviewed reference factors