• noun the degree to which there is a relationship between two sets of data


  • A relationship in the change of two variables. The relationship may be causal, parallel, reciprocal, and so on. For example, a comparison of the magnitudes of two signals which vary over time.


  • A measured relationship between two linked units on a market over a specified period of time. Correlation can be used for prediction if one unit has a habit of changing in response to the other. Various monetary units used for trading on Forex are often viewed as closely correlated. For example, the euro and dollar are often linked together. How one reacts to the other depends on the economic conditions of the respective countries involved.

Information & Library Science

  • noun close connections which influence each other

Media Studies

  • noun a relationship in which two or more things are mutual or complementary, or one thing is caused by another