The article never explains why Fisher's formula has a denominator of (S1 + S2) as opposed to, say (S1 * S2). This is something I haven't been able to figure out, but some more explanation of how to arrive at that as opposed to other forms would be helpful.
The article never explains why Fisher's formula has a denominator of (S1 + S2) as opposed to, say (S1 * S2). This is something I haven't been able to figure out, but some more explanation of how to arrive at that as opposed to other forms would be helpful.