00:01
On this problem, we were throwing darts at a bullseye.
00:03
Now, the bullseye has a probability of being hit of 0 .01.
00:11
A triple, i'm sorry, a double has a probability of 0 .10.
00:22
A triple has a probability of 0 .05.
00:29
And missing the dartboard has a probability of 0 .02.
00:37
Now, you'll notice that those probabilities don't add up to 1, and so that means that we need a probability of something else happens.
00:42
So i'll call it the probability of another.
00:44
And so to do that, we just need to take all of those and subtract them from one.
00:51
And so that means it probably something else happens is .82.
00:58
Now we're told that we're throwing darts at the dartboard seven different times.
01:02
That means our end value is set.
01:08
We want no triples.
01:11
And so it means we want the .05 to the 0 .05 to the 0 .0.
01:18
No bullseyes.
01:20
And so we want 0 .01 to the 0.
01:26
A double twice...