建议使用官方纸质指南，查看对照完整题目
【OG20-P284-355题】
Jill has applied for a job with each of two different companies. What is the probability that she will get job offers from both companies?
(1) The probability that she will get a job offer from neither company is 0.3.
(2) The probability that she will get a job offer from exactly one of the two companies is 0.5.
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分析A选项
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分析B选项
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分析C选项
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分析D选项
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分析E选项
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预约名师一对一题目解析课程题干：P(one)+P(both)+P(neither)=1
条件1：P(one)未知，不充分
条件2：P(neither)未知，不充分
结合：P(both)=1-0.3-0.5，充分
题目讨论 （1条评论）
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11
1-0.5-0.3=0.2
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2017-11-20 05:24:08
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emily666回复11
看了OG的长篇大论解释，总觉得他们的解题思路要复杂些
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2020-04-07 10:54:32
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你这只猪回复11
概率问题 独立事件 同时发生 P（A U B） = A的概率* B的概率 ， 至少发生一个 A的概率+B的概率-AB同时发生的概率
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2020-07-01 14:52:13
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