Reference no: EM131951923

1. Plot the following points on the scatter diagram:

{(0,2),(1,1),(2,4),(3,3),(4,4),(5,7),(6,3),(7,5),(8,10),(9,7),(10,7)}.

Plot the points carefully and use the "Remove Last Point" button to replot a point if you make an error.

What is the approximate correlation coefficient (r) for your scatter diagram?

1. Between .50 and .69
2. Between .70 and .89
3. Between .90 and 1

-Select-

a

b

c

Item 1

2. Press the "Clear All Points" button and then plot the following points on the scatter diagram: {(0,0), (1,1), (2,4), (3,7), (4,8), (5,9), (6,8), (7,7), (8,4), (9,1), (10,0)}. Plot the points carefully and use the "Remove Last Point" button to replot a point if you make an error. After plotting the points, press the "With Line" button.

Which best describes the scatter diagram, best-fit line, and correlation coefficient?

1. The scatter diagram is linear, the best-fit line trends downward, and the correlation highly negative.
2. The scatter diagram is linear, the best-fit line trends upward, and the correlation highly positive.
3. The scatter diagram is curvilinear, the best-fit line trends downward, and the correlation highly negative.
4. The scatter diagram is curvilinear, the best-fit line is flat, and the correlation is near zero.
5. The scatter diagram is linear, the best-fit line is flat, and the correlation is near zero.