A source produces 4 symbols with probabilities $$\frac{1}{2}$$, $$\frac{1}{4}$$, $$\frac{1}{8}$$ and $$\frac{1}{8}$$. For this source, a practical coding scheme has an average code word length of 2 bits/symbol. The efficiency of the code is:
A. 1
B. $$\frac{7}{8}$$
C. $$\frac{1}{2}$$
D. $$\frac{1}{4}$$
Answer: Option B
This Question Belongs to Electronics And Communications Engineering >> Information Theory And Coding
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