An FSK system transmits binary data at a rate of 2.5 Mbps During the course of transmission, AWGN with No/2 = 0.2 × 10-13 is added to the signal. In the absence of noise, the amplitude of the received sinusoidal waveform for digit 0 or 1 is 1 mV. Determine the average probability of symbol error for the following: (a) Coherent binary FSK (b) Coherent MSK (c) Noncoherent binary FSK