correlation

Meanings

1. 1
   noun

   a statistic representing how closely two variables co-vary

   it can vary from -1 (perfect negative correlation) through 0 (no correlation) to +1 (perfect positive correlation)

2. 2
   noun

   A reciprocal, parallel or complementary relationship between two or more comparable objects.

   clear correlation

3. 3
   noun

   One of the several measures of the linear statistical relationship between two random variables, indicating both the strength and direction of the relationship.

   For example, scientists can use data from larger studies about the correlation between antibody levels and vaccine efficacy in adults to make a prediction about vaccine efficacy in children.

4. 4
   noun

   a statistical relation between two or more variables such that systematic changes in the value of one variable are accompanied by systematic changes in the other

5. 5
   noun

   a reciprocal relation between two or more things

6. 6
   noun

   An isomorphism from a projective space to the dual of a projective space, often to the dual of itself.

Etymology

From Middle French corrélation. Morphologically correlate + -ion.