ABSTRACT
In the preceding chapters we described some RR methods for attributes or sensitive characters which are essentially qualitative in nature. In such situations, there is a natural partitioning of the population into mutually exclusive and exhaustive classes according to the forms of the attribute(s) under consideration, and interest lies in the estimation of the respective proportions in these classes. In practice, however, one may also have to deal with quantitative sensitive characters or variables. For example, one may be interested in investigating the numbers of induced abortions among the females in a region or the quantity of alcoholic drinks consumed by a given group of people over a given period.
