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已知随机变量X和Y的联合分布律如下表所示: XY 12310.20.20.120.30.10.1完成下表E(Y|X)E(Y|X=1)=______ E(Y|X=2)=______ E(Y|X=3)=______ p______ ______ ______

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设明天是否有雨仅与今天的天气有关,而与过去的天气无关.又设今天下雨而明天也下雨的概率为0.8,而今天无雨明天有雨的概率为0.4;规定有雨天气为状态1,无雨为状态0.因此问题是两个状态的马尔科夫链.则今天有雨且两天后仍有雨的概率为

A. 0.68
B. 0.72
C. 0.28
D. 0.44

What are the features of state-controlled broadcasting?

A. Broadcasting as the mouthpiece of the party and government
B. Represent the interest of the state
C. Part of the public democracy
D. Seek active cooperation with advertising agency

Bertha Brainard is the CBS's first director ofcommercial programming.

Program transmission technology includes wireless, cable, satellite and internet.

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