What is Copula? Definition Copulas are statistical tools that factorize multivariate distributions into the product of its marginals and a function that captures any possible form of dependence among them(marginals). This function is referred to as the copula, and it links the marginals together into the joint multivariate modelWhat is Copula? • Definition Copulas are statistical tools that factorize multivariate distributions into the product of its marginals and a function that captures any possible form of dependence among them (marginals). This function is referred to as the copula, and it links the marginals together into the joint multivariate model