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单选题 某人掷两枚均匀硬币,出现"一正一反"的概率是( )

A. 1/2

B. 3/4

C. 1/3

D. 1/4

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时间：2025-11-12 01:03:03

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题目1
单选题
<img src="https://tihai-oss-cloud.itihey.com/img/dcfd3c9ab44abb20f978ffa69c46ca7a.png">
A. <img src="https://tihai-oss-cloud.itihey.com/img/086ef847701ba29afe16b97bef3cf338.png">B. <img src="https://tihai-oss-cloud.itihey.com/img/66256976eb5d6a9fc566bd3da55b755f.png">C. <img src="https://tihai-oss-cloud.itihey.com/img/93829213648acb641e179634f8c62e67.png">D. <img src="https://tihai-oss-cloud.itihey.com/img/0d52fefbf70c7aff851a2e51622c89b1.png">
题目2
单选题
<img src="https://tihai-oss-cloud.itihey.com/img/4e1ac8c36c27bf5bc1b0afb4cf70d203.png">
A. <img src="https://tihai-oss-cloud.itihey.com/img/3be83bcdd3fe6d3b8c43e4298d45571a.png">B. <img src="https://tihai-oss-cloud.itihey.com/img/9d79f70d010ab204770e24691edbd521.png">C. <img src="https://tihai-oss-cloud.itihey.com/img/ec091daed463635f829bf8eea419dfcf.png">D. <img src="https://tihai-oss-cloud.itihey.com/img/6c3988dac9944ec7bd25b29e107836a5.png">
题目3
单选题
<img src="https://tihai-oss-cloud.itihey.com/img/457d7e52a9753cd33604ef1658b7327d.png">
A. &quot;甲乙平局&quot;B. &quot;甲胜乙负&quot;C. &quot;甲胜&quot;D. &quot;甲胜或平局&quot;
题目4
单选题
某人掷两枚均匀硬币,出现&quot;一正一反&quot;的概率是( )
A. 1/2B. 3/4C. 1/3D. 1/4
题目5
单选题
<img src="https://tihai-oss-cloud.itihey.com/img/c392d0bcbd27b86de2af7cb370c9a117.png">
A. 2B. 1C. 1/2D. 1/4
题目6
单选题
<img src="https://tihai-oss-cloud.itihey.com/img/b5c3257c68c449f00f663d669099e214.png">
A. <img src="https://tihai-oss-cloud.itihey.com/img/8a3c1e9ba1025dc913bef6e84f4d4295.png">B. <img src="https://tihai-oss-cloud.itihey.com/img/737b992ac86f6ad2ffa448bfdc8755ef.png">C. <img src="https://tihai-oss-cloud.itihey.com/img/03704aa60bfd10cfedcfecd8c31bab84.png">D. <img src="https://tihai-oss-cloud.itihey.com/img/f917bafae27ab4899de400361db101c4.png">
题目7
单选题
<img src="https://tihai-oss-cloud.itihey.com/img/1ae4bc753e7d7baa127f44b5939114e9.png">
A. <img src="https://tihai-oss-cloud.itihey.com/img/9f6d7c0a554af8724c67dd195063d9a1.png">B. <img src="https://tihai-oss-cloud.itihey.com/img/eb34476c2adec76774dbc6aa87e25f8b.png">C. <img src="https://tihai-oss-cloud.itihey.com/img/621d12f4afda4e486044ba4cd9119dbe.png">D. <img src="https://tihai-oss-cloud.itihey.com/img/341195ba20bd218d003a913e60ffd8b7.png">
题目8
判断题
独立射击三次,每次击中率为0.1,恰好击中一次的概率为0.243
A. 正确B. 错误
题目9
判断题
<img src="https://tihai-oss-cloud.itihey.com/img/1df6abd1e3c3928c7e691e59ab4ac1d7.png">
A. 正确B. 错误
题目10
判断题
甲、乙两人独立地对同一目标射击一次,命中率分别是0.5和0.4,则目标被击中的概率是0.7
A. 正确B. 错误
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