The following PMP® exam sample question is taken from the Free PMP Exam Simulator at http://free.pm-exam-simulator.com - The answer is at the very bottom:

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Which of the following diagramming techniques is a typical display of Sensitivity Analysis?

A.) Influence Diagram
B.) Network Diagram
C.) Fishbone Diagram
D.) Tornado Diagram

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Hint: It compares relative importance and impact of variables that have a high degree of uncertainty to those that are more stable.
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ANSWER AND EXPLANATION:
The correct answer is D
Explanation: One typical display of Sensitivity Analysis is the Tornado Diagram, which is useful for comparing the relative importance and impact of variables that have a high degree of uncertainty to those that are more stable.
Reference: PMBOK Guide 4th Edition, page 298