Peter Grant MP @PeterGrantMP
@stephenhallfc @YesScot @theSNP @IpsosMORI If the sample is properly weighted you can get a surprisingly accurate picture of what people are thinking from a sample not much over 1,000. It’s a long time since I studied stats but from memory it’s about 95% certain that each answer is accurate to within 3% either way. — PolitiTweet.org
