Terms containing variance of sample variance

Subject	English	Chinese
econ.	If the purchaser finds that the delivered goods are at variance with the sample, he should notify the seller within 15 days after the arrival of the goods	如买方发现运来的货物与样品有差异，应在货到后15天内通知卖方
stat.	test of the homogeneity of sample variances	抽样方差同质性检验
stat.	test of the homogeneity of sample variances	抽样*1/2差同质性1/4煅
math.	unbiasedness of sample variance	样本变异性的不偏性
busin.	unbiasedness of sample variance	样本方差的无偏性
space	variance of sample variance	样本方差的方差
busin.	variance of single sample	单项样本方差
space	variance of the sample mean	样本均值的方差