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【单选题】
假定用于分析的数据包含属性age。数据age的值如下(按递增序):13,15,16,16,19,20,20,21,22,22,25,25,25,30,33,33,35,35,36,40,45,46,52,70, 问题:使用按箱平均值平滑方法对上述数据进行平滑,箱的深度为3。第二个箱子A.
：
B.
18.3
C.
.22.6
D.
.26.8
E.
.27.9
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B.
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C.
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D.
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A.
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B.
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C.
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D.
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A.
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B.
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C.
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D.
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【单选题】Independence Day In 1767, England placed a tax on all tea used by the American colonist. The colonists protested 'taxation without representation' and refused to allow the tea to be unloaded. In 1773,...
A.
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B.
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D.
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