Which one of the following is not the way of estimating the statistical parameters and is integral part of analysis or synthesis tasks when probability of failure is involved?

Which one of the following is not the way of estimating the statistica

1.	Which one of the following is not the way of estimating the statistical parameters and is integral part of analysis or synthesis tasks when probability of failure is involved?
A.	Propagation of error
B.	Propagation of uncertainty
C.	Propagation of weight
D.	Propagation of dispersion
Answer» D. Propagation of dispersion