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問答題

下面關(guān)于矩估計(jì)的描述正確的是()A.樣本矩在一定程度上反映了總體矩B.矩估計(jì)是用樣本矩來估計(jì)或近似相應(yīng)的總體矩C只要總體的k階矩存在，就可以應(yīng)用矩估計(jì)D,矩估計(jì)需要知道總體的分布類型

答案：答案：A 解析：選項(xiàng)A正確。樣本矩是基于樣本數(shù)據(jù)計(jì)算得到的統(tǒng)計(jì)量，它在一定程度上反映了總體矩的特征。樣本矩是通...

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