**The JRR Technique**

The particular jackknife method based on jackknife repeated replications has many features of the BRR technique, since only the method of forming the pseudo samples is different. We consider the JRR technique in the simplest case where the number of sample clusters per stratum is exactly two, and the clusters are assumed to be drawn with replacement. JRR variance estimators are derived for a ratio estimator, which is a subpopulation proportion or estimator. See page 156 in Lehtonen, R. & Pahkinen, E. (2004)