Five Observations Taken For Two Variables Follow. Xi 5 7 10 4 14 Yi 50 50 40 60 30 (A) Choose The Correct Scatter Diagram With X On The Horizontal Axis. (0) (Ii) Y 60- 60 50 50 40 40 30+ 30- 20+ 20- 10- 10 5 10 15 5 10 15 (Iii) (Iv) ? 60- 60- 50 50 40 40 30+ 30 20+ 20 107 10+ 10 10 5 10 15 ? 5 10 15 ? Graph (Iii) What Does The Scatter Diagram Indicate

Five observations taken for two variables follow. xi 5 7 10 4 14 yi 50 50 40 60 30 (a) Choose the correct scatter diagram with x on the horizontal axis. (i) (ii) (iii) (iv) Graph (iii) What does the scatter diagram indicate about the relationship between the two variables? Negative linear (b) Compute the sample covariance. If needed, round your answer to one decimal digit. If your answer is negative use “minus sign”. -40 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.

 

 

Five observations taken for two variables follow. XI 57 7 10 4 14 50 50 40 60 30 (a) Choose the correct scatter diagram with x on the horizontal axis. (i) 60- (ii) 60- 50- 50- 40- 40- 30- 30- 20 20 10+ 5 10 15 X 20- 10- (iv) 60- 60- 50+ 50- 40- 40- 30- 30 30- 5 10 20- 20- 10+ 10+ 15 X