In this paper, a simple and practical randomized design technique for sensitive question survey is proposed. Further, the estimator of the mean and the variance of this estimator are given.

• 摘要本文提出一种方便且实用的敏感问题调查策略，并讨论了估计量及其方差以及精度与保护度之间的关系。结果指出精度与保护度之间存在不可调和的矛盾。