If no other estimator of a given parameter has a sampling distribution with a smaller variance, the estimator used is best characterized as:

[单选题]If the variance of the sampling distribution of an estimator is smaller tha

[单选题]If a normal distribution has a mean of 10 and a variance of 40, a standardi

[单选题]The sampling distribution of a statistic is the probability distribution ma

[单选题]The Central Limit Theorem is best described as stating that the sampling di

[单选题]To apply the central limit theorem to the sampling distribution of the samp

[单选题]The standard error of the sampling distribution of the sample mean for a sa

[主观题]The Chinese government has given some_______ (medicine) equipment to some African coun-tries

[单选题]You are given the following discrete uniform probability distribution of gr

[单选题]A discrete uniform distribution (each event has an equal probability of occ

[单选题]Suppose a given binary tree has 10 leaf nodes, the number of nodes with degree of 2 isA．12B．11C．9D．Indeterminable