2014年4月自学考试《概率论与数理统计(经管类)》全真模拟试卷(5)
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- A.0．064
- B.0．216
- C.O．936
- D.0．784
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- A.<img src="//img1.yqda.net/question-name/6e/70c988932f18f32794ad808366f001.jpg" alt="" />
- B.<img src="//img1.yqda.net/question-name/17/c2c4c90c50f70995054138e5ddfb43.jpg" alt="" />
- C.<img src="//img1.yqda.net/question-name/45/7eda4acd82bb3a34536eda7681ccc5.jpg" alt="" />
- D.<img src="//img1.yqda.net/question-name/5f/0052c8153d8746c22dc4a9898caa8b.jpg" alt="" />
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(5P111)设随机变量X有期望E(X)与方差D(X)则对任意正数￡，有（ ）
- A.<img src="//img1.yqda.net/question-name/0c/68d1ef1268d3fd391f2036fbe68099.jpg" alt="" />
- B.<img src="//img1.yqda.net/question-name/76/a216d9a470c220aa21f65f7ad6a11b.jpg" alt="" />
- C.<img src="//img1.yqda.net/question-name/5c/e5b6835e2cfa13b479825ef6f98db2.jpg" alt="" />
- D.<img src="//img1.yqda.net/question-name/2f/6dd371a1ede8e4839059cf073c7944.jpg" alt="" />
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- A.－0．8
- B.－0．16
- C.0．16
- D.0．8
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- A.<img src="//img1.yqda.net/question-name/22/ca28053d9524d913e6ed655decd08d.jpg" alt="" />
- B.<img src="//img1.yqda.net/question-name/c9/c92c4a59704c244fbc8e045e7fd4ad.jpg" alt="" />
- C.P(B
- D.A)＝1
- E.P(A－B)＝P(A)－P(B)
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同时抛3枚均匀硬币，则至多有1枚硬币正面向上的概率为（ ）
- A.<img src="//img1.yqda.net/question-name/6a/fb1357c3016149d1212ceea5465aa4.jpg" alt="" />
- B.<img src="//img1.yqda.net/question-name/aa/c53c3efa818e901101c6fb2a115fec.jpg" alt="" />
- C.<img src="//img1.yqda.net/question-name/56/99261dc1245c78a89219c7378fcbce.jpg" alt="" />
- D.<img src="//img1.yqda.net/question-name/c9/dc335ecb066961492e5dd1b32c2323.jpg" alt="" />
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- A.<img src="//img1.yqda.net/question-name/b6/f066cdf72852b6f6983301981376b1.jpg" alt="" />
- B.<img src="//img1.yqda.net/question-name/26/6a06bb136ec45c2af91b9393b64bbf.jpg" alt="" />
- C.<img src="//img1.yqda.net/question-name/6f/3ec986be184030b48ac338a2db87e1.jpg" alt="" />
- D.<img src="//img1.yqda.net/question-name/c7/b5af60bdfbd1e8a8bf96339d096263.jpg" alt="" />
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设随机变量X1，X2，…，Xn，…相互独立，它们满足大数定理，则Xi，的分布可以是（ ）
- A.<img src="//img1.yqda.net/question-name/5f/d821bac82246eeda75e287cd994784.jpg" alt="" />
- B.<img src="//img1.yqda.net/question-name/65/d1daa9991600000cb7ae017e99bfb7.jpg" alt="" />
- C.<img src="//img1.yqda.net/question-name/76/a32533f7c5df49047b347b29bd4af6.jpg" alt="" />
- D.<img src="//img1.yqda.net/question-name/85/6c02fcd58cce7a74f4546e4396c93a.jpg" alt="" />
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