A scatterplot that appears as a shapeless mass of data points indicates ____. A)a curved relationship among the variables B)a linear relationship among the variables C)a nonlinear relationship among the variables D)no relationship among the variables

The standard error of the estimate (S_e) is essentially the ____.

A)

mean of the residuals

B)

standard deviation of the residuals

C)

mean of the independent variable

D)

standard deviation of the independent variable

In linear regression, we fit the least squares line to a set of values (or points on a scatterplot). The distance from the line to a point is called the ____. A)fitted value B)residual C)correlation D)covariance E)none of these options