试题与答案

某企业有A、B两个投资项目,计划投资额均为1 000万元,其收益(净现值)的概率分布

题型:问答题

题目:

某企业有A、B两个投资项目,计划投资额均为1 000万元,其收益(净现值)的概率分布如下表:   要求:(1)分别计算A、B两个项目净现值的期望值。 (2)分别计算A、B两个项目期望值的标准离差。 (3)判断A、B两个投资项目的优劣。

答案:

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