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Old September 16, 2018, 09:57 AM   #26
Aguila Blanca
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Quote:
Originally Posted by 44 AMP
One can find a "connection" or a "correlation" between everything on Earth, if you're willing to make it, no matter how tenuous. If it happened on Earth, that is a relationship. SO, therefore, to reduce murders, on Earth, we should outlaw Earth. Makes just as much sense.
True. Correlation does not equal causation.

For example: I have not had any bananas in my house since my wife died 4-1/2 years ago. I have not slipped and fallen at home since my wife died 4-1/2 years ago. Ergo, eliminating bananas in the home prevents slip-fall accidents.
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Old September 16, 2018, 10:29 AM   #27
Glenn E. Meyer
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No, that's not really an example of calculating a correlation.

You need at least three pairs of values. The degrees of freedom to establish significance for a regression is Number of Pairs - 2.

It is also true that you couldn't do a non parametric with just one observation pair.

We need some more households. If we could establish a predictive, significant relationship then experimental methods might show us causality.
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