取某种橡胶件的7个样品,测量其抗拉强度,得到数据如下: 45.5,45.9,46.9,45.8,44.7,45.5。45.3去除
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取某种橡胶件的7个样品,测量其抗拉强度,得到数据如下: 45.5,45.9,46.9,45.8,44.7,45.5。45.3去除了一个最大值和一个最小值后,所计算出的均值为( )。
A.45.5
B.45.6
C.45.7
D.45.8
参考答案: