"ZHANG Yan" <[EMAIL PROTECTED]> wrote in message b05scv$lmp35$[EMAIL PROTECTED]">news:b05scv$lmp35$[EMAIL PROTECTED]... > Hi,I need to compute a probability. > > Suppose there are three variable, Px, P, M, where Px, P are probability, and > M is random variable.Their relationship is as follows: > > if M=1, then Px= 1 > if M=2, then Px=P > if M=3, then Px=P^2 > ... > if M=m, then Px=P^{m-1} > ... > M varies from 1 to infinite. > And the probability P(M=m) is given, then how should I compute the > probability Px? > > Thanks. If i understand the problem correctly, for given M=m Px=P(M=m). If that is the case then it has to be: 1 + P + P^2 + P^3 + ... = 1 and that leads to P=0. > -- > ZHANG Yan > >
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