The table below gives the bushels of corn per acre resulting from the use of various amounts of fertilizer in pounds per acre:

n BUSHELS OF CORN PRODUCED (Y) AMOUNT FERTILIZER USED (X)

n y x

1 40 6

2 44 10

3 46 12

4 48 14

5 52 16

6 58 18

7 60 22

8 68 24

9 74 26

10 80 32

a. Draw a scatter plot for the given data.

b. Economics teaches us that production is a function of inputs. Find linear equation between the two variables using the method of least squares.

c. Compute for the coefficient of correlation r and interpret.

d. What would be the yield if 35 pounds of fertilizer will be used?