OpenStudy (anonymous):

The probability that a single bit will be in error on a typical public telephone line using 4800 bps modem is 10 to the power -3. If no error detection mechanism is used, the residual error rate for a communication line using 9-bit frames is approximately equal to A. 0.003 B. 0.009 C. 0.991 D. 0.999 E. None of the above

5 years ago
OpenStudy (anonymous):

B

5 years ago
OpenStudy (anonymous):

Thanks

5 years ago