there are 3 variables. X,Y,Z.(adsbygoogle = window.adsbygoogle || []).push({});

Assuming

Y = a + b*X + errorTerm

Z = c + d*X + errorTerm,

Y = g + h*Z + errorTerm;

what can we say about the relationtion between h and (b,d)? under what

condition so we can have "h = b/d"?

thanks

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# One question regarding to the simple regression

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