I have a sequence of states (either 1 or 2).

For eg: Out of 100, if 30 of them are '1' and 70 of them are '2' then the P(1)=.3 and P(2)=.7

Now I need to find the probability of occurance of 1 in the next state when the current state is already 1 P_(11). Also find the probability of occurance of 2 when the current state is 1 (P_12).

Please help.