哈工大随机过程习题及答案
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3
(a)
(b)
0.92/4.30=0.21
4
There are four states of each individual in a animal groups: death, nonimmune, sick, Immune, recorded as state 1, 2, 3 and At the beginning, all are in nonimmune state, if illness rate of nonimmune individual is 0.1 every year, death rate of nonimmune is 0.01; annual death rate of sick is 0.1; annual recovery rate (immune) of sick is 0.8; annual death rate of immune is 0.01. Set up Markov chain modal, calculate the average life time of the animal groups
=90
=100