A person has entered weekly football pools and has noted the number of correct predictions he has made over four weeks in February. The correct predictions are represented in the following table:

Pools (X)6868
No. of Correct Predictions (Y)1221

Determine the linear correlation coefficient and interpret it. Based on the success this individual has experienced in February, should potential betters have confidence in his predictions?

xiyixi ·yixi²y
616361
8216644
6212364
818641
2864220010

There is no correlation between both variables, therefore potential betters should not have confidence in future predictions.

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Emma

I am passionate about travelling and currently live and work in Paris. I like to spend my time reading, gardening, running, learning languages and exploring new places.

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