Gigapress
Trying to be less wrong
200 x 30 = 6000 people. That’s a pretty big sample size for an opinion poll. Plug that into a binomial distribution confidence interval calculator and you’ll see the margin of error is like 2% depending on assumptions about p.
However, the representativeness and validity of any opinion poll, in general, is highly questionable. Polls are almost always garbage and should be treated as useless except when a very compelling reason otherwise is presented.
However, the representativeness and validity of any opinion poll, in general, is highly questionable. Polls are almost always garbage and should be treated as useless except when a very compelling reason otherwise is presented.