Each of the following graphs show the relationship between two variables. Determine the Pearson product-momentcorrelation coefficient (r) for each graph.1225-10-n20-8-6-15-410-2-5-002001020VariableVariableAnswer Bankr0.0r0.8r0.4r 0.9930-r0,9oo 0.8-20-0.6-0.4-10-0.205100150.20.40.60.810VariableVariableVariable 3Variable 6Variable 8Variable 5 30-3025-25-20-20-15-15-10-10-5-5101551015VariableVariable8-2-0510152025VariableVariable 2Variable 7Variable 4

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Asked Nov 3, 2019
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Each of the following graphs show the relationship between two variables. Determine the Pearson product-moment correlation coefficient (r) for each graph.

Each of the following graphs show the relationship between two variables. Determine the Pearson product-moment
correlation coefficient (r) for each graph.
12
25-
10-
n20-
8-
6-
15-
4
10-
2-
5-
0
0
20
0
10
20
Variable
Variable
Answer Bank
r0.0
r0.8
r0.4
r 0.99
30-
r0,9
oo 0.8-
20-
0.6-
0.4-
10-
0.2
0
5
10
0
15
0.2
0.4
0.6
0.8
10
Variable
Variable
Variable 3
Variable 6
Variable 8
Variable 5
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Each of the following graphs show the relationship between two variables. Determine the Pearson product-moment correlation coefficient (r) for each graph. 12 25- 10- n20- 8- 6- 15- 4 10- 2- 5- 0 0 20 0 10 20 Variable Variable Answer Bank r0.0 r0.8 r0.4 r 0.99 30- r0,9 oo 0.8- 20- 0.6- 0.4- 10- 0.2 0 5 10 0 15 0.2 0.4 0.6 0.8 10 Variable Variable Variable 3 Variable 6 Variable 8 Variable 5

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30-
30
25-
25-
20-
20-
15-
15-
10-
10-
5-
5
10
15
5
10
15
Variable
Variable
8-
2-
0
5
10
15
20
25
Variable
Variable 2
Variable 7
Variable 4
help_outline

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30- 30 25- 25- 20- 20- 15- 15- 10- 10- 5- 5 10 15 5 10 15 Variable Variable 8- 2- 0 5 10 15 20 25 Variable Variable 2 Variable 7 Variable 4

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Expert Answer

Step 1

Scatter plot for variable 1 Vs variable 6:

 

There exists no linear relationship between the variables 1 and 6 because all data points are distributed scatterly. That is, there is no correlation. Hence, the value of r is 0.

 

Scatter plot for variable 1 Vs variable 5:

 

There exists a negative linear relationship between the variables 1 and 5 because all data points are lies in the negative direction and forms a straight line towards downside. That is, there is highly negative correlation. Hence, the value of r is -0.9.

...

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