By using Baum-Welch algorithm in Matlab Create "Coin Flip" training data eg (H.THH), (H,T,H,H), (H,T,T,H), etc. And train your model using the algorithm and the data you have created. Create "Coin Flip" testing data eg. (H.THT) Make sure to write your hand calculations using your data Example 1,2 a1,i a22 0.2 0.6 0.8 0.4 P(H) 0.7 0.4 P(T) 0.3 ti 0.0 OEH,T,H,T And Lambda