correlation

From Middle French corrélation. Morphologically correlate +‎ -ion.

• (Received Pronunciation) IPA^(key): /ˌkɒɹ.əˈleɪ.ʃən/

  • Audio (Southern England):

    (file)

• (General American) IPA^(key): /ˌkɔɹ.əˈleɪ.ʃən/, /ˌkɑ.ɹəˈleɪ.ʃən/
• Rhymes: -eɪʃən
• Hyphenation: cor‧re‧la‧tion

correlation (countable and uncountable, plural correlations)

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

   clear correlation

   positive correlation

   strong correlation

   weak correlation

2. (statistics) One of the several measures of the linear statistical relationship between two random variables, indicating both the strength and direction of the relationship.
   • 2022 March 22, Tasnim Ahmed, “How protected are we against Covid-19? Scientists search for a test to measure immunity”, in CNN‎:

     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.

   • 2025 February 4, Madeline Holcombe, “Just deal with it in the morning. Your mental health will be better then, study suggests”, in CNN‎:

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

• correlate

• correlation on Wikipedia.Wikipedia