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项目经理第一次承接移动端APP的软件开发项目,在做成本估算时,考虑了最不利的情况,估算出成本为90人/日,最有利的情况下成本为45人/日,公司的期望成本为60人/日。基于贝塔分布的三点估算法，该项目的

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A、55

B、50.5

C、65

D、62.5

参考答案:

D

2021.05

信息系统项目管理师

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