7. A modem constellation diagram similar to Fig. 2-23 has data points at the following coordinates: (1, 1), (1, 1), (1, 1), and (-1, -1). How many bps can a modem with these parameters achieve at 1200 symbols/second? symbols/second = baud. There are four legal values per baud, so the bit rate is twice the baud rate. At 1200 baud, the data rate is 2400 bps.