4 ms·
if you have a correlation between A and B, and a correlation between B and C, then A and C are correlated.
by malka 11y ago
if you have a correlation between A and B, and a correlation between B and C, then A and C are correlated.
- chengsun 11y agoThis is not true in general. Consider two independent fair die rolls, with A and C being the outcomes. Let B be the sum of the outcomes. The higher A is, the higher B is likely to be, so A and B are positively correlated. So are B and C. However there is no correlation between A and C as they are independent.
- malka 11y agoOh. True, thanks for the explanation :)