Heads, tails, heads, tails, heads, heads. That's 4 out of 6 heads. But in this situation, it's not a 50% chance of getting heads, it's 80%. So it would be 0.8 times 0.2 times 0.8 times 0.2 times 0.8 times 0.8. Essentially, we have this multiplication. We can rearrange it, because it doesn't matter what order you multiply things in. So it's 0.8 to the fourth power times 0.2 squared.