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Communication SystemsInformation Theory

For equally likely independent symbols, the entropy of a source alphabet containing 8 symbols is?

  • A1 bit/symbol
  • B2 bits/symbol
  • C3 bits/symbol
  • D8 bits/symbol
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Correct Answer: C. 3 bits/symbol
Explanation: For M equally likely symbols, H=log2(M). Thus H=log2(8)=3 bits per symbol.
Reference: Standard communication systems: source entropy numerical
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