Statistics HW
Dr.bdu
CorrelationAssignment2.docxLecture 2 – Correlation Assignment
Scatter plot-1 point, each correlation by hand 4 points, each coefficient of determination 2 point
then
1. For the following data, create a scatter plot (1) and calculate the correlation by hand (3).
2. Compute the correlation coefficient for the following data set
3. Compute the coefficient of determination for the following data set
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X |
Y |
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1 |
7 |
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3 |
6 |
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10 |
9 |
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9 |
8 |
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10 |
1 |
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7 |
8 |
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2 |
2 |
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7 |
1 |
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2 |
5 |
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8 |
2 |
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1 |
10 |
4. Compute the correlation coefficient for the following data set
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Y |
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1 |
10 |
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5 |
6 |
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7 |
4 |
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3 |
8 |
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10 |
1 |
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2 |
9 |
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4 |
7 |
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6 |
5 |
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9 |
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8 |
3 |
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5. Compute the correlation coefficient for the following data set
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X |
Y |
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8 |
10 |
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3 |
3 |
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2 |
6 |
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6 |
6 |
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8 |
2 |
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8 |
4 |
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7 |
2 |
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1 |
6 |
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1 |
1 |
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2 |
7 |
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6 |
7 |
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6. Compute the correlation coefficient for the following data set
7. Compute the coefficient of determination for the following data set
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X |
Y |
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4 |
7 |
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1 |
3 |
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3 |
6 |
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5 |
8 |
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2 |
6 |
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10 |
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