Figure 4. Correlations between 
and extinction time and between 
and 
.
We have produced a large set of Wright-Fisher paths with random 
and random 
subject to 
. From this set we selected a sample of the 790 histories in which subpopulation 2 was extinct and such that the final value of 
lied in the experimental interval. Both plots in this figure refer to this sample. In the left we show the correlation between 
and the time (in generations divided by 
) for Neanderthal extinction. The mean extinction time in the sample is 0.58. In the right we plot the correlation between 
and 
. Notice that the number of histories with 
in the experimental interval increases with 
, and that larger values of 
are correlated with large values of 
.