FIG. 7.

Distribution of takeover times $T$ for a 2D lattice with a side length of $n=100$. The numerical results are obtained from $1.5\times {10}^5$ simulations. The solid line is the standard normal distribution. The empirical quantities $\mu$ and ${\sigma }^2$ are the numerically calculated mean and variance of $T$. The schematic diagram in the upper left shows a 2D lattice.