A.P(X≤λ)=P(X≥λ) B.P(X≥λ)=P(X≤-λ) C. D

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问题 A.P(X≤λ)=P(X≥λ)B.P(X≥λ)=P(X≤-λ)C.D.

选项 A.P(X≤λ)=P(X≥λ)B.P(X≥λ)=P(X≤-λ)C.D.

答案 B

解析
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