covariance
/koʊˈvɛriəns/
noun
- A measure of how much two random variables change together, used in statistics and probability.
- The covariance between temperature and ice cream sales was positive, meaning they rise together.
- A negative covariance indicates that when one variable goes up, the other tends to go down.
- In statistics class, we learned that covariance can show whether two variables tend to increase or decrease together.