PMI-RMP · Question #77
Nancy is the project manager of a project with 78 stakeholders. This is a high-profile project and she needs to express to her project team and to the management the importance of communication in…
The correct answer is B. 3,003. The formula for communication channels is n(n-1)/2, where n is the total number of stakeholders. With 78 stakeholders: 78 × (78 - 1) / 2 = 78 × 77 / 2 = 6,006 / 2 = 3,003 communication channels. This formula is foundational in PMP exam prep. Option A (156) would be 2n, option C…
Question
Nancy is the project manager of a project with 78 stakeholders. This is a high-profile project and she needs to express to her project team and to the management the importance of communication in this project. She would like to show the number of stakeholder communication channels in the project. Based on this information how many communication channels exist within this project?
Options
- A156
- B3,003
- C78
- D6,084
How the community answered
(27 responses)- A15% (4)
- B74% (20)
- C4% (1)
- D7% (2)
Explanation
The formula for communication channels is n(n-1)/2, where n is the total number of stakeholders. With 78 stakeholders: 78 × (78 - 1) / 2 = 78 × 77 / 2 = 6,006 / 2 = 3,003 communication channels. This formula is foundational in PMP exam prep. Option A (156) would be 2n, option C (78) is just n, and option D (6,084) is n(n-1) without dividing by 2-a common arithmetic error. The large number of channels underscores why communication planning is critical for projects with many stakeholders.
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