correlation — English Dictionary

Noun

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

   Usage

   • Countable
   • Uncountable

   Examples

   clear correlation

   positive correlation

   More examples (2)

   strong correlation

   weak correlation

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

   Usage

   • Countable
   • Uncountable

   Examples

   More examples (2)

   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.

   While there are physiological changes throughout the day that may influence how you handle things, there are bigger correlations between mental health and well-being and time of year, according to Rutledge.

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

   Usage

   • Countable
   • Uncountable

Noun

1. a reciprocal relation between two or more things

   Synonyms

   correlativity

   Broader terms

   reciprocalityreciprocity

2. 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)

   Synonyms

   correlation coefficientcoefficient of correlation

   Broader terms

   parametric statistic

   Examples

   what is the correlation between those two variables?

3. 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

   Synonyms

   correlational statistics

   Broader terms

   statistics