Talk:Coefficient of Inbreeding

The calculation is a bit confusing as given.

There are actually 4 steps in the genealogy (one each from a gen I individual to each of the offspring)

But also the count should be over all paths to all common ancestors. Both gen I individuals are ancestors, so the count needs repeated.

F = (1/2)4+1+(1/2)4+1 = 1/16 (as given, but derived incorrectly)