Untamoi on 02 September 2009
Kantor said:
I sample 12,000 London citizens. 6,000 of them are Chinese. Thus, half the people in London are Chinese. It's not likely, but it's very much possible, and you're unlikely to get an accurate sample of a 100+ million userbase with a 12k sample. In my example, London only has 8 million people, while there are more than 12 times that number who own a current gen console. |
Gallup polls usually only have 500-1,000 people even in USA and those are still quite accurate. I doubt any gallup poll has ever had even 10,000 people polled. And 99.99% of the studies have much less than 12,000 people. And your example is less possible than winning lottery 10 times in the row.
