MATH 505b Homework 2
Zhuo Zhang
zhuozhan@usc.edu
A. The Wright-Fisher model
x
N x
Xn 1
Xn 1
N
1. P (Xn = x|Xn 1 ) = x
1
. Clearly Xn only depends on Xn 1 , which
N
N
makes it a Markov Chain. The state space is cfw_0, 1, . . . , N . The transition matrix