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.

A discrete distribution is a statistical probability distribution that represents the possible discrete values a variable can take.

Sample mean. Sampling from the Normal distribution. Order statistics. Sample statistics. Sampling distributions. Parameter estimation. Interval estimation. Hypothesis testing. Maximum-likelihood ...

A widely used modification of probability sampling techniques involves the use of quotas at the last level of a multistage area probability sample. Here we analyze an experiment comparing this ...

In this article, acceptance sampling plans are developed for the Marshall-Olkin extended exponential distribution percentiles when the life test is truncated at a pre-specified time. The minimum ...

The course covers the probability, distribution theory and statistical inference needed for third year courses in statistics and econometrics. Michaelmas term: Events and their probabilities.

Serious polling requires careful data collection and careful adjustment. It doesn't mean much to say your poll is a "probability sample" when your nonresponse rate is 90 percent.