hard20 pts · first answer countsschedule-riskquantitative-analysis

Merge bias in schedules

Why does a milestone fed by several parallel paths usually finish later than its deterministic CPM date?

A.CPM always adds hidden buffer to parallel pathsB.Parallel paths share resources, so CPM counts their duration twiceC.CPM assumes every activity will finish at its pessimistic estimateD.The milestone waits for the latest of several uncertain paths, so the chance that all finish on time is much lower than for any single path

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Merge bias in schedules

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