Regression imputation is commonly used to compensate for item nonresponse when auxiliary data are available. It is common practice to compute survey estimators by treating imputed values as observed ...

Calculating the correlation coefficient is time-consuming, so data is often plugged into a calculator, computer, or statistics program to find the coefficient.

Correlation is a statistical measure of how two securities move in relation to each other. Investors use correlation to diversify their portfolios and hedge against risk.

When making large, frequent bets, calculate optimal position sizing if you can, based on the expected payout and your estimate of the correlation between past/expected returns and future returns.

Joint mean-covariance regression modeling with unconstrained parametrization for continuous longitudinal data has provided statisticians and practitioners with a powerful analytical device. How to ...

Using computer simulations and real data from a large study of schizophrenia, they showed that a method called linkage disequilibrium score regression — although less computationally intensive ...