What is the coefficient of determination for a correlation ofr =.80? Please show your work and provide an explanation of what your number means.

What is the coefficient of determination for a correlation of r = .40? Please show your work and provide an explanation of what your number means.

Draw the regression line for the following equation:

Y = -3 + (1) X

Show your calculation for a low and high value on the predictor value. Pages 499 to 501 in your book have a step-by-step guide to draw the regression line.