00:01
So you're driving home from work.
00:04
To get home, you have to pass to 12 intersection with stoplights.
00:07
Calculate the probability of you hitting every single red light at each intersection on the way home.
00:13
So from there, you can see that the probability has every red light at all 12 intersection.
00:20
Basically, we assume that the spotlight operate independently.
00:24
So basically, each stoplight has equal probability of being red and green light when you arrive.
00:30
So basically, you have one half of the chance to get red, and then another one half of chance of green.
00:41
So this is what we assume.
00:45
So from there, you can see that the probability of all red is going to the chance of the red, one half.
00:57
And this is the chance of having one red light.
01:02
Now you have 12 of them...