expected value
nounUK /ɪkˈspek.tɪd ˈvæl.juː/
US /ɪkˈspek.tɪd ˈvæl.juː/
The average result you would get if you did something many times.
If you roll a die many times, the expected value of the numbers you get is 3.5.
RELATED WORDS
OTHER MEANINGS
2. In math, the sum of each possible result multiplied by how likely it is to happen.
The expected value of a fair coin toss game is zero when you win or lose one point.
3. The amount of money you can predict to win or lose on average in a game or bet.
The lottery has a negative expected value, so players lose money over time.
4. The result that is most reasonable to think will happen based on what you know.
The expected value of the test scores was high because the class studied hard.