probability function
nounUK /ˌprɒbəˈbɪləti ˈfʌŋkʃən/
US /ˌprɑːbəˈbɪləti ˈfʌŋkʃən/
A probability function is a math rule that tells you how likely each possible thing is to happen.
Using the probability function, we found that rolling a six has a one-in-six chance.
RELATED WORDS
OTHER MEANINGS
2. In statistics, a function that assigns a probability to each possible outcome of an experiment.
The probability function for a fair coin gives 0.5 to heads and 0.5 to tails.
3. A mathematical rule describing how likely different values of a random variable are.
The teacher drew the probability function on the board to show the chances of each score.
4. A way to measure how often an event is expected to happen over many tries.
The probability function predicts that the spinner lands on red about one time in four.