Answer step by step

1 Given the following data. Regress yon X, and X2 and interprete your results . V y 10 9 14 7 5 XI 3 2 - 2 3 15 X 2 3 - 1 4 6 2 2. The following data relates to the saler and profit of ABC Ity over 10 years Calculate the Sample correlation coefficient between sales and profits, Time in years 2 3 4 5 6 7 8 9 10 sales in $ 0Dos 20 30 40 50 60 70 80 190 profit is f . odds 2 3 5 7 9 11 12 14 19