Statistics & Probability

Basic Probability

Probability of an event.

Formula

Formula
P = favorabletotal

Variables

SymbolDefinitionType & rangeUnitsRole
f favorable outcomes real number (ℝ) input
t total outcomes real number (ℝ) input

Try it yourself

Interactive calculator
Result

Worked examples

Example 1
Givenfavorable = 13, total = 52
Result0.25
Example 2
Givenfavorable = 1, total = 6
Result0.1666666667