A coffee shop has two coffee machines, and only one coffee machine is in operation at any given time. A coffee machine m

[answerhappygod]

A coffee shop has two coffee machines, and only one coffee
machine is in operation at any given time. A coffee machine may
break down on any given day with probability 0.2 and it is
impossible that both coffee machines break down on the same day.
There is a repair store close to this coffee shop and it takes 2
days to fix the coffee machine completely. This repair store can
only handle one broken coffee machine at a time. Define your own
Markov chain and use it to compute the proportion of time in the
long run that there is no coffee machine in operation in the coffee
shop at the end of the day.
I will give you a thumb up, if your answer is correct and
clear!