# Author Archives: Matthew Nagie

## Confidence interval for two independent means

A confidence interval for two independent means is a method of statistical inference to determine if there is a difference between the mean values of two populations, or what the value of the difference may be. Since it compares two populations, there must be a (binary) categorical variable involved in the global population by which to […]

## Coefficient of Determination

The coefficient of determination, denoted as R2, is a measure of strength of a given correlation. The value will fall between 0 and 1, with a larger number representing a stronger correlation. There are three ways to calculate the coefficient of determination, though each is not guaranteed to produce the same value. In the scope of […]