Use this procedure to define probability distributions for an activity duration.
To define probability distributions for an activity duration:
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Display the Activity Details dialog box for the activity for which you want to define duration probability distributions.
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In the
Optimistic field of the Risk tab, enter the minimum estimated probable duration for the activity.
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In the
Pessimistic field, enter the maximum estimated probable duration for the activity.
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Review the value in the
Original Duration field.
This field should reflect the most likely duration for the activity.
For symmetrical distribution shapes, this field is ignored during risk analysis.
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If necessary, change the value in the
Original Duration field.
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In the
Shape field, enter a shape for the probability distribution.
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If appropriate, select the
Key Activity field.
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