[单选题]

下列向量中的概率向量是()

A . (0.1,0.4,0,0.5)

B . (0.1,0.4,0.1,0.5)

C . (0.6,0.4,0,0.5)

D . (0.6,0.1,0.8,-0.5)

参考答案与解析:

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下列向量中的概率向量是()