In FMEA studies, how to calculate the RPN ?

Agree with Tartir...........................

The right answer is Choice (C) RNP=Likelihood of Occurrence × Likelihood of Detection × Severity

Agreed with  experts

It's  C 

The system calculates the risk priority number for each potential defect of a function as follows:

It chooses the effect with the greatest significance B (highest number of points in valuation).

It chooses the cause with the greatest probability of occurrence A (highest number of points in valuation).

If one or more detection actions are assigned to the defect cause, the system chooses the highest probability of detection E (lowest number if points in valuation) from all the assigned detection actions that have at least the status Confirmed .

The risk priority number results as follows: RPN = B * A * E.

3rd Answer                                                                                                     

C

Answer is option "c " RPN = O × D × S

 In FMEA normally we'll calcualte the RPN as Sev x Occ x Det

C. RNP=Likelihood of Occurrence × Likelihood of Detection × Severity

Yeah, it's 'C'. Product of all three.

I think my choice and that of the development of the possibilities that are less risk

B. RNP = Likelihood of Occurrence × Likelihood of Detection

answer option >>>>>>>>>>>>>>C. RNP=Likelihood of Occurrence × Likelihood of Detection × Severity

B sounds like the correct answer.