1 Department of Studies in Statistics, University of Mysore, Mysore, India. 2 All India Institute of Speech and Hearing, Mysore, India. In many studies where sampling is used, such as environmental ...

Central Limit Theorem: A sampling distribution of the mean is approximately normally distributed if the sample size is sufficiently large. This is true no matter what the population distribution is.

According to a recent poll by Gallup.com, 59% of Americans believe that the amount they pay in income taxes is fair. The survey was based on a sample 1017 American adults. If the pollsters talked to ...

Typically, we don't know statistics about a population itself. The only way to know these for sure is to survey the entirety of the population, which is typically impractical. For example, to know the ...