A communications system sends a message with a bit rate of 4 Mbit 5-1. a. If it uses a coding rate of 1/3, what bit rate is used for the data transmission of the encoded message? b. In a threefold error-control system, a 0 bit is encoded to 000 and a 1 bit is encoded to 111. Describe how the error-control decoder can correct one-bit errors in the encoded message. A communications system sends a message with a bit rate of 4 Mbit 5-1. a. If it uses a coding rate of 1/3, what bit rate is used for the data transmission of the encoded message? b. In a threefold error-control system, a 0 bit is encoded to 000 and a 1 bit is encoded to 111. Describe how the error-control decoder can correct one-bit errors in the encoded message