Question

Suppose that whether or not it rains today depends on previous weather conditions through the last three days. Show how this system may be analyzed by using a Markov chain. How many states are needed?

Answer 1

I would think if it rained the past 3 days than it would rain that day too or if it didn't rain the past 3 days than it will probably not rain that day so you only need I think 3 states.