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3. A source of information produces equaiprobable blocks of 4-bits. The encoder cct adds an even parity bit for error detection. Prepare the encoder table then find the prob. of the logic pair "10" at encoder o/p. 3. A source of information produces equaiprobable blocks of 4-bits. The encoder cct adds an even parity bit for error detection. Prepare the encoder table then find the prob. of the logic pair "10" at encoder o/p