linear regression interval how to estimate standard deviation for regression what is the linear regression prediction interval which interval is best linear approximation linear regression average deviation how to find the approximation error of a linear regression line what is the linear approximation of the x? what is the lr interval how to find an approximation error which of the following is the best linear approximation? what is the linear regression interval? average linear regression interval if a linear regression predicts a function, how to calculate the approximation error how is the average deviation calculated for regression prediction? linear regression predictions how to calculate what is the approximation error of linear regression how to calculate linear regression intervals what is the best linear regression interval if the best linear approximation is the line $x_i = mx_0+b$, how can I calculate the approximation error? how to calculate linear regression interval