Probability of failure amp failure rate

[radhi_ym]

pleae help:

for example,
a)in FMEA, for one event the failure rate = 2 per million hours.
b) Is it equal to also the probability of failure for that event.
c) if so. could you tell the relevant comparitive formulas.

[Pantelis]

No it is not.
So – assuming that the failure rate (fr) is constant (not necessarily a valid assumption, but that is all you provided) – then the probability of failure (Q) at time T is
Q=1-exp(-fr*T)

(Note that you need to keep in mind that the units of T and fr must be the same)