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填空题 设随机变量
的概率密度函数为
,则
= 0.____.(请填写小数点后两位)
学科：概率论与数理统计（仅用于完成作业及单元自测线上部分）
时间：2023-12-31 06:42:11
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题目1填空题
设随机变量<img src="https://tihai-oss-cloud.itihey.com/img/a9350fdaa68ddfa81591137471da8f9b.png">的概率密度函数为<img src="https://tihai-oss-cloud.itihey.com/img/9d2568d948ac2b1e64ecd1b456c1a342.png">,则<img src="https://tihai-oss-cloud.itihey.com/img/dc940a8194e39d127b3079c5eac75971.png">= 0.____.(请填写小数点后两位)题目2填空题
设随机变量<img src="https://tihai-oss-cloud.itihey.com/img/a9350fdaa68ddfa81591137471da8f9b.png">的分布函数<img src="https://tihai-oss-cloud.itihey.com/img/02c3621b8036a3d2765de231a36da83f.png">,则<img src="https://tihai-oss-cloud.itihey.com/img/6f8729deae3d75bbea1ddec00f394fea.png">= ____.(请填写整数)题目3填空题
设<img src="https://tihai-oss-cloud.itihey.com/img/2340c464e0dc698f93aa126e1bd14207.png">为二维随机变量<img src="https://tihai-oss-cloud.itihey.com/img/28396bc8851ee8df98d7da23c558208e.png">的分布函数,则<img src="https://tihai-oss-cloud.itihey.com/img/3192dc693d17041b0478a1f0584b43aa.png">____. (请填写整数)题目4填空题
已知二维随机变量<img src="https://tihai-oss-cloud.itihey.com/img/28396bc8851ee8df98d7da23c558208e.png">的概率分布如下 <img src="https://tihai-oss-cloud.itihey.com/img/0b664d779a7b473a0794fd13fe96ec9b.png"> ,且<img src="https://tihai-oss-cloud.itihey.com/img/cf7f4146a3128383b821be251e802d25.png">,问<img src="https://tihai-oss-cloud.itihey.com/img/6b1c787e2b0a4f57db44afd0f865c113.png">0.____. (请填写小数点后一位数字)题目5填空题
已知随机变量<img src="https://tihai-oss-cloud.itihey.com/img/db5afb10f2b579e74ddbed85b1094f5e.png">,则<img src="https://tihai-oss-cloud.itihey.com/img/ee7e27b253cb3e31820c08590aceee51.png">0.____. (请填写小数点后一位数字)题目6填空题
设随机变量<img src="https://tihai-oss-cloud.itihey.com/img/a9350fdaa68ddfa81591137471da8f9b.png">的分布函数为<img src="https://tihai-oss-cloud.itihey.com/img/e33aeebfaa3db0fbd9ddc8488ff9a11b.png">,则常数A的值为____.(请填写整数)题目7填空题
一位射手对同一目标独立地进行射击,直到命中为止.设射手的命中率为0.6,则恰好射击三次的概率为0.0____.(请填写小数点后第二、三位数字)题目8填空题
已知离散型随机变量<img src="https://tihai-oss-cloud.itihey.com/img/a9350fdaa68ddfa81591137471da8f9b.png">的分布律为 <img src="https://tihai-oss-cloud.itihey.com/img/ffa7f9d6ada141cd065e3f0a2cf5ad65.png"> 且<img src="https://tihai-oss-cloud.itihey.com/img/596b5c65afb3e5e8fd4705fe9f97ea5b.png">,则<img src="https://tihai-oss-cloud.itihey.com/img/dc8fee09ba661561bf9e4033f9a87081.png">0.____. (请填写小数点后一位数字)题目9填空题
已知随机变量<img src="https://tihai-oss-cloud.itihey.com/img/6a3c76820596f6b2f3fc629fbd8d0c6c.png">,则<img src="https://tihai-oss-cloud.itihey.com/img/feeed29cc86ca902ab9deb6cc807cae1.png">0.____. (请填写小数点后一位数字)题目10填空题
设随机变量<img src="https://tihai-oss-cloud.itihey.com/img/a9350fdaa68ddfa81591137471da8f9b.png">的分布函数<img src="https://tihai-oss-cloud.itihey.com/img/4080f77115eefe13340ecf22efef1033.png">,则<img src="https://tihai-oss-cloud.itihey.com/img/65b8e9d0b3d688747cd04730c31230c4.png">=0.____. (请填写小数点后一位数字)下载 题海APP
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