00:02
All right, so we need to find the popularity of a new movie as accurately as possible.
00:09
So let's say from 0 % to 100%, we need to know how popular this new movie p was.
00:17
And we could choose between sampling the population or taking the opinions of everyone as a whole.
00:25
So taking the opinion to the entire population or just sampling some people.
00:29
And sampling works fairly well if you take a rather diverse universe of people.
00:33
You could just go out of the streets, ask, you know, just start yelling aloud, who has watched this movie before? and if everyone is trustworthy and they indeed have watched the movie, you could just start logging their opinions about the movie.
00:49
And you would ask them on a scale of, you know, 0 % to 100 % how much they liked the movie...