Question: If the correlation between two variables x and y is equal to 0.90 (and statistically significant), which of the following is TRUE? x and y

If the correlation between two variables x and y is equal to 0.90 (and statistically significant), which of the following is TRUE?

x and y are highly related, whereby a positive change in x is accompanied by a positive change in y

x and y are highly related, whereby a negative change in x is accompanied by a positive change in y

The two variables x and y are not related to one another

The coefficient of determination is equal to 0.81

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