probability distribution

noun
UK /ˌprɒbəˈbɪləti ˌdɪstrɪˈbjuːʃən/
US /ˌprɑːbəˈbɪləti ˌdɪstrɪˈbjuːʃən/

A probability distribution is a list that shows how likely each possible result is.

The probability distribution for a fair coin gives heads and tails each a chance of one half.


OTHER MEANINGS

2. A mathematical function that assigns a probability to each possible value of a random variable.

The normal probability distribution is often drawn as a bell-shaped curve.

3. The pattern of how often different results occur when an experiment is repeated many times.

Rolling a die many times produces a probability distribution with roughly equal counts for each face.

4. A table or graph showing the probabilities of all possible outcomes of an event.

The teacher drew the probability distribution of sums from two dice on the board.