A binary FSK system transmits data at the rate of 2.5 megabits per second. During the course of transmission, white Gaussian noise of zero mean and power spectral density 10^(-20) watts per hertz is added to the signal. In the absence of noise, the amplitude of the received signal is 1 μV across 50-ohm impedance. Determine the average probability of error assuming coherent detection of the binary FSK signal. [Hint: Energy per bit is given by Eb = Ac² T/2R, where Ac is the signal amplitude, T i