The problem of estimating the variance of the ratio estimator in sampling with probability proportional to aggregate size is investigated. The form of nonnegative unbiased variance estimators is found ...

Journal of the Royal Statistical Society. Series D (The Statistician), Vol. 44, No. 2 (1995), pp. 173-194 (22 pages) General population surveys in Britain tend to use either the electoral registers ...

Individual prediction uncertainty is a key aspect of clinical prediction model performance; however, standard performance metrics do not capture it. Consequently, a model might offer sufficient ...

This article was originally published on Built In by Eric Kleppen. Variance is a powerful statistic used in data analysis and machine learning. It is one of the four main measures of variability along ...

This article looks at a simple structured approach to assigning variance contributions and to assuring that the analytical procedure is fit for purpose. The ...

The first part of this article discussed general strategies for validation extensions to other test method components, laboratories and even different test methods.1 This second part provides ...