# What is r2 in math

R-squared (R 2) is an important statistical measure which is a regression model that represents the proportion of the difference or variance in statistical terms

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## R Squared Formula

R2 or r2 (pronounced R-square), the coefficient of determination of a linear regression in statistics. R2, the two-dimensional real coordinate space in mathematics. R2: Risk of

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## R-Squared Formula, Regression, and Interpretations

Algebraically, a vector in 2 (real) dimensions is defined to be an ordered pair (x, y), where x and y are both real numbers (x, y ∈ R). The set of all 2 dimensional vectors is denoted