Figure 9: Plot showing the model from Figure 8 and data points from a artificial sample of Bg that is contaminated with 20 copies of an extraneous genome fragment 5000 bases long, corresponding to a 0.0002 fraction contamination. The p-value for detecting 5 out 10 trials outside the ellipse is ˜ 0.001, which means the observation was unlikely to have occurred by chance, and thus the genomic content of the two samples is NOT identical.