solve and explain

4.16. Find the codeword for wa in the arithmetic code for the distribution given in Example 4.18. 4.17. Find the average word-length L2 for the code discussed in Example 4.18. [You do not need to calculate the codewords.] Compare the values of L2/2,H(p1), and H(p2)/2. Let S={,,,}. The following table defines a probability distribution on S2. for example, the number in row and column is the probability of . Deternine the arithmetic code for S2. Solution For each string XS2 we take P=P(X),a=a(X) and calculate 1/P,nP, and n=np+1. Then we determine c such that c12na