A Statistic is
A、equaltoaparameterofthepopulation.;
B、anexactcharacteristicofthepopulation.;
C、anindexcalculatedbasedonalldataofthepopulation.;
D、obtainedafterstudyingalltheindividualsinthepopulation.;
E、calculatedbasedonasample.
发布时间：2025-07-21 18:48:44
