WHEN CONSTRUCTING AN EQUATION OF A LINEAR SMOOTHING FUNCTION hat (y)=alpha _(0)+alpha _(1)x BY THE METHOD OF LEAST SQUARES USING THE FORMULA =(1)/(n)sum _(i=1)^nx_(i)y_(i) . THE FOLLOWING PARAMETER IS DETERMINED Select one: overline (xy) y^2 bar (y) bar (x) x^2

The correct answer is .In the formula for the least squares method, the parameter is determined by the formula: where and are the values of the independent variable and the dependent variable, respectively, and is the number of data points.The term represents the average product of the independent variable and the dependent variable, which is used to calculate the slope of the linear smoothing function.The other options, , , , and , are not the correct parameters for determining the slope of the linear smoothing function using the least squares method.