📝 Redundancy hrough Coding

Q1. What does the redundancy ratio represent in a coding scheme?

💡 Difficulty: easy | ✅ Correct: A

Q2. If a coding scheme doubles the number of redundant bits while keeping the data bits constant, which effect is most directly expected?

💡 Difficulty: medium | ✅ Correct: C

Q3. A coding scheme transmits 8 data bits with 4 redundant bits. Assuming each bit has an independent error probability of \(p = 0.001\), what is the approximate probability that a double‑bit error goes undetected if the code can detect all single‑bit errors but fails to detect exactly two‑bit errors?

💡 Difficulty: hard | ✅ Correct: B