I would like to know what is the specific term given to this case, or how is this justified in technical words:
x1 is not correlated to y but x2 which is correlated to x1 is correlated to y.
I would like to know what is the specific term given to this case, or how is this justified in technical words:
x1 is not correlated to y but x2 which is correlated to x1 is correlated to y.