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These simple correlations show how each two variables are related, but this leaves open the question as to whether there are any underlying relations between the entire set. Give an example of how bivariate correlation may fail to take into account the relations between a group of variables.

I think any relation is reflected in bivariate correlations? not? I can't think of any example. Could you please guide me?

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marked as duplicate by whuber May 22 at 11:32

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