Q166·Section III (Statistics)·166 of 180Post-stratification — stratifying after the factPost stratification is used when: OptionsAStratum sizes are equalBNumber of strata of the population is not knownCPopulation size and stratum sizes are not knownDStratum to which a unit belongs is not known before samplingPick an option to check your answer.Show answerShow solution Report a problem with this question← Q165All questionsQ167 →Keyboard: A–D answer · S solution · ←/→ previous/next