Using a beta probability distribution to characterize uncertain activity times is practical because it allows managers to use judgmental estimates to identify the distribution.

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This is true because a beta distribution is a flexible distribution that can take on a wide range of shapes depending on the estimated parameters, including the minimum, most likely, and maximum activity times. These estimates can be made by managers based on their experience and expertise, making it a useful tool for modeling uncertain activity times in project management.

Using a Beta Probability Distribution to Characterize Uncertain Activity Times