Which of the following statements is true of the χ2 distribution?
A、Itisacontinuousprobabilitydistribution.;
B、Theχ2statisticisalwaysgreaterthanorequaltozero.;
C、Itisnegativelyskewed.;
D、Itapproachesauniformdistributionasthedegreesoffreedomincrease.
发布时间：2025-07-24 06:20:41
