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April 18, 2014

April 18, 2014

Posted by **BlahxD** on Wednesday, April 6, 2011 at 2:43am.

X Y

5 24

8 40

3 20

6 30

9 40

7 35

10 50

2 22

The correct answer for the linear regression table is Y' = 3.56X + 10.4. But every time i calculate r, i get a value over 1.

Here is another one that i couldn't figure out the r:

Student/QuizScore/FinalScore

1 / 5 / 82

2 / 8 / 80

3 / 3 / 75

4 / 1 / 60

5 / 10 / 92

6 / 6 / 85

7 / 7 / 86

8 / 4 / 70

9 / 2 / 42

10 / 6 / 78

- Statistics -
**PsyDAG**, Wednesday, April 6, 2011 at 12:52pmAlways Pearson's r ≤ 1. One indicates perfect predictability. How can you get better than perfect predictability?

I searched Google under the key words "*calculating pearson's r*" to get these possible sources:

http://www.google.com/search?client=safari&rls=en&q=calculating+pearson's+r&ie=UTF-8&oe=UTF-8

In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search. Also see http://hanlib.sou.edu/searchtools/.

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