Five observations taken for two variables follow.

x_i 3 6 11 2 18 y_i 50 50 40 60 30

What does the scatter diagram indicate about the relationship between the two variables?

(b) Compute the sample covariance. If needed, round your answer to one decimal digit. If your answer is negative use "minus sign".

Interpret the sample covariance.

The input in the box below will not be graded, but may be reviewed and considered by your instructor.

blank

(c) Compute the sample correlation coefficient. If needed, round your answer to three decimal digits. If your answer is negative use "minus sign".

Interpret the sample correlation coefficient.

The input in the box below will not be graded, but may be reviewed and considered by your instructor.

blank