2 ms·
For your information, about all polls are done on about 1000 people (slightly less to slightly more). You need to poll a lot more people to reduce significantly
by wazoox 15y ago
For your information, about all polls are done on about 1000 people (slightly less to slightly more). You need to poll a lot more people to reduce significantly the statistical error level.
See http://en.wikipedia.org/wiki/Margin_of_error http://en.wikipedia.org/wiki/Margin_of_error