How does multiplying each score by a (positive) constant affect the value of the correlation? The correlation changes sign. The correlation does not change. The correlation decreases. The correlation increases.

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How does multiplying each score by a (positive) constant affect the value of the correlation? The correlation changes sign. The correlation does not change. The correlation decreases. The correlation increases.
х Y
4
6.
5.
3
4
6
5
ΣΧ
ΣΥ
SSx
SSy
ΣΧΥ
SP
Add 2 points to each X value:
2 Added to Each X
X Y
6
8.
5.
2
11
4
8.
4
3
Compute the correlation for the modified scores using two decimal places.
Transcribed Image Text:х Y 4 6. 5. 3 4 6 5 ΣΧ ΣΥ SSx SSy ΣΧΥ SP Add 2 points to each X value: 2 Added to Each X X Y 6 8. 5. 2 11 4 8. 4 3 Compute the correlation for the modified scores using two decimal places.
ΣΧ
ΣΥ
SSx
SSy
ΣΧΥ
SP
How does adding a constant to every score affect the value of the correlation?
O The correlation decreases.
O The correlation increases.
O The correlation does not change.
O The correlation changes sign.
Multiply each of the original X values by 2:
Each X Multiplied by 2
X Y
8.
5.
12
6.
18
4
12
5.
4.
Compute the correlation for the modified scores using two decimal places.
Transcribed Image Text:ΣΧ ΣΥ SSx SSy ΣΧΥ SP How does adding a constant to every score affect the value of the correlation? O The correlation decreases. O The correlation increases. O The correlation does not change. O The correlation changes sign. Multiply each of the original X values by 2: Each X Multiplied by 2 X Y 8. 5. 12 6. 18 4 12 5. 4. Compute the correlation for the modified scores using two decimal places.
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