一道考研概率复习题,假设目标出现在射程之内的概率为0.7,这时射击命中目标的概率为0.6,则在两次独立射击中至少一次命中的概率为多少?答案的分析是0.7*(1-(1-0.6)^2)=0.588个人感觉无论怎么分
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![一道考研概率复习题,假设目标出现在射程之内的概率为0.7,这时射击命中目标的概率为0.6,则在两次独立射击中至少一次命中的概率为多少?答案的分析是0.7*(1-(1-0.6)^2)=0.588个人感觉无论怎么分](/uploads/image/z/7143148-28-8.jpg?t=%E4%B8%80%E9%81%93%E8%80%83%E7%A0%94%E6%A6%82%E7%8E%87%E5%A4%8D%E4%B9%A0%E9%A2%98%2C%E5%81%87%E8%AE%BE%E7%9B%AE%E6%A0%87%E5%87%BA%E7%8E%B0%E5%9C%A8%E5%B0%84%E7%A8%8B%E4%B9%8B%E5%86%85%E7%9A%84%E6%A6%82%E7%8E%87%E4%B8%BA0.7%2C%E8%BF%99%E6%97%B6%E5%B0%84%E5%87%BB%E5%91%BD%E4%B8%AD%E7%9B%AE%E6%A0%87%E7%9A%84%E6%A6%82%E7%8E%87%E4%B8%BA0.6%2C%E5%88%99%E5%9C%A8%E4%B8%A4%E6%AC%A1%E7%8B%AC%E7%AB%8B%E5%B0%84%E5%87%BB%E4%B8%AD%E8%87%B3%E5%B0%91%E4%B8%80%E6%AC%A1%E5%91%BD%E4%B8%AD%E7%9A%84%E6%A6%82%E7%8E%87%E4%B8%BA%E5%A4%9A%E5%B0%91%3F%E7%AD%94%E6%A1%88%E7%9A%84%E5%88%86%E6%9E%90%E6%98%AF0.7%2A%281-%281-0.6%29%5E2%29%3D0.588%E4%B8%AA%E4%BA%BA%E6%84%9F%E8%A7%89%E6%97%A0%E8%AE%BA%E6%80%8E%E4%B9%88%E5%88%86)
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