When we add Compound Poisson processes with parameters x and y, we get a compound Poisson process with parameter x and y. We also use F(A+B) = F(A) + F(B) to get the CDF.
Sir, thanks for the reply, but I think you have refered / answered to wrong Q. I have found the problem already posted & replied at: http://www.acted.co.uk/forums/showthread.php?t=2534&highlight=Q6.8 Thanks,