Figure 4.

The variance of the fraction of admixture, $\mathbb{V}$[H₁,g,δ], when contributions from the source populations occur only in the founding generation and the total contribution from source population 1 is held constant at $s_{1,0}=\frac{1}{2}$. The limit of the variance of the fraction of admixture over time is zero for any choice of $\left(s_{1,0}^{\text{f}},s_{1,0}^{\text{m}}\right)$. The magnitude of the variance, calculated from Equation 35, is inversely related to the level of sex bias. For all four scenarios, s₁ = s₂ = 0 and $s_{1,0}=s_{2,0}=\frac{1}{2}$.