A)What is the fundamental difference between correlation and simple linear regression?

B)A correlation has shown r = 0.65. How do you interpret this correlation coefficient? What does it tell us about the relationship between the variables from which it was calculated?

C) A simple linear regression has an r-squared of 0.35. How do you interpret thisr-squared value?

D) A regression equation of y = 0.50x + 100 was found for a particular study. Interpret the meaning of the equation.