Statistical sampling analysis is most commonly used when one seeks to infer useful information about a relatively large population without examining every unit in the population by examining only a subset of that population (i.e. a sample).  As part of sampling analysis, estimation or extrapolation is a procedure by which measured characteristics of a sample yield estimates, inferentially, about unknown characteristics of the population from which the sample was drawn …

Statistical sampling is routinely used in audits and investigations when seeking to reach conclusions about large volumes of data.  A probe sample can be a key tool in increasing the efficiency and reducing the cost of statistical sampling analysis.  A probe sample can also be helpful in identifying risk and quickly evaluating whether a full statistical sampling is required.