学校: 成功大学 教师: 陈俊男 科目: EMBA管理经济 Hirschey 11版 第二章习题 第7题 page56 题目:如下英文 我的想法: 题目大致在叙述 乐观时，2亿 悲观时，1亿 但好像都是10%，看不太懂题目的意思 麻烦高手能帮忙解惑，谢谢罗！ The manager of the aerospace division of General Aeronautics estimates the price it can charge for providing satellite launch services to commercial firms. Her most optimistic estimate ( a price not expected to be exceeded more than 10 percent of the time) is $2 million. Her most pessimistic estimate ( a lower price than this one is not expected more than 10 percent of the time) is $1 million. The price distribution is believed to be approximately normal. a.What is the expected price? b.What is the standard deviation of the launch price? c.What is the probability of receiving a price less than $1.2 million? --

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