Copulae

/ˈkɑpjuleɪ/ noun

Definition

Plural of copula, or in statistics/probability, plural of copula (a mathematical function modeling relationships between variables).

Etymology

Latin plural form of 'copula,' maintaining the classical plural in scientific and linguistic terminology.

Kelly Says

In statistics, copulas are a recent mathematical innovation (1959) that let researchers model how different variables depend on each other—they're named after the linguistic copula because they 'bind together' variables, showing how language metaphors fuel mathematics.

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