correlation coefficient

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correlation coefficient
Message posted by Patrick (via 152.163.207.58) on July 14, 2001 at 9:40 AM (ET)

Please help me solve this problem. Would you also show how you solved the problem/math to get your answer so I can solve these types of probs in the future.
THANKS!

A Reseacher is interested to know if younger children play more video games than older children do. She asked twelve kids how many video games they played per day. The results are listed below.
Kid Age games played
1 12 11
2 12 9
3 11 9
4 10 8
5 8 8
6 8 7
7 7 6
8 6 5
9 6 4
10 6 4
11 5 3
12 5 1

Please show work/math THANKS!

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Re: correlation coefficient
Message posted by JG (via 128.8.23.93) on July 14, 2001 at 8:39 PM (ET)

From a practical point of view you can get a good idea of what you have by plotting a 'scatter diagram'. That is, plot each pair as a point - x-age,y-games played .

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