what is the dummy variable in a classifying regression what is the difference of means in a dummy variable how to define algebraic regression with a dummy variable definition and example of an ols estimator what is the dummy variable in an OLS ols model definition what is the hat alpha of the curve how to interpret ols model of a regression variable? how are the coefficients of the classical regression model determined in a simple regression if a dummy variable reflects the mean of a value, the ols curves would be what what is meant by hat alpha which model is used to deduct the difference of the mean of the dummy variable what is the function of delta in a dummy variable which statement describes the difference of the mean and slope of a variable in classical regression? what is the a function of the ols in algebra what is ols regression what is the difference and the difference in the coefficients of an ols estimator? define a classifier in algebra which statement is correct about the coefficient of the ols what is the standard deviation for a linear regression model