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To guarantee correction of upto $t$ errors, the minimum Hamming distance $d_{min}$ in a block code must be ______

1. $t+1$
2. $t-2$
3. $2t-1$
4. $2t+1$

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+1 vote
Option (4) 2t+1 is correct.
0
pls explain
now option d) is correct

To guarantee correction of up to t errors in all cases, the minimum Hamming distance in a block code must be dmin = 2t + 1.