# risk priority number

A project manager is in the process of evaluating and prioritizing risks on the project by calculating the Risk Priority Number (RPN) for the risks. A Risk priority number will consider which of the following factors?

A)Probability, Impact, and Timeframe

B)Probability, Impact, and owner

C) Probability, Impact, and Cost

D)Probability, Impact, and Schedule

### Weird question - Am split

Weird question - Am split between Cost and Schedule, but I'll go with Option C.

### Hi,I too have answered as C.

Hi,

I too have answered as C. But the answer is given as A

### What is the source of your

What is the source of your question, Vijaya?

Thanks

Jai

### It's one of the questions

It's one of the questions from Simplilearn question bank

Regards

Vijaya

### LIKE all courseware,

LIKE all courseware, simplilearn also have some question nonrlelevant to pmbok.

and in actual from reliable resources

What is RPN?

RPN
One common approach in FMECA calculates a Risk Priority Number (RPN). Each failure
(mode) has an assigned severity, probability, and detectability values. This common approach
uses the following qualitative scale for ranking.
• The severity score (S) is an integer between 1 and 10, where the most severe is a 10
• The probability score (P) is an integer between 1 and 10, where the highest probability is
a 10
• The detectability score (D) is an integer between 1 and 10 where most difficult to detect
is a 10.
The RPN is the product of the three ranks. For example, with S = 5, P = 3, D = 6, the RPN is
90 = (5)(3)(6).
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Not only this , looking to many other sites related to RPN , all 4 options are wrong

here  severity means Impact.
but detectibility = may not be , a cost, schedule, or owner.
Also not any time frame.

the definition of 3rd parameter Detectibility or Detection = how difficult to detect a risk is called Detectibility.

### Thanks a lot for clarifying

Thanks a lot for clarifying the RPN

Bhavesh

Thank You Sir

### A is the correct answer.

Risk analysis is done based on Probability x Impact on project objectives. Also timeframe is important for prioritisation. For example, I would rather like to concentrate on a risk that might occur next week rather than one that might occur after six months. So answer A is correct IMHO.