title: Probability and sampling.
abstract: The concept of probability is introduced, and the role of probability distributions in statistical theory is discussed, with particular reference to the Normal distribution and its characteristics. Sampling and sampling variation are described, together with sampling error, the standard error of the mean, and confidence intervals for determining the likely magnitude of a population mean.
authors.forename: J S
authors.initials: JS
authors.lastname: Bulman
authors.forename: J F
authors.initials: JF
authors.lastname: Osborn
mesh_terms: D002648:Child; D004245:DMF Index; D003813:Dentistry; D006801:Humans; D008297:Male; D011153:Population; D011336:Probability; D011897:Random Allocation; D012107:Research Design