Exam-style question
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Three copies of a bit sequence are received: 1011, 1111 and 1011. Using majority voting at each position, what corrected sequence is produced?.
- A.1011
- B.1111
- C.1001
- D.1010
Model answer
What a good answer should say
- 1011
Explanation
Why this works
At each position, the majority value is selected. Two of the three copies contain 0, 1, 0 and 1 respectively, so the majority sequence is 1011.
Common mistake
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