Bipolar pulse signals, s(t) (i = 1, 2), of amplitude 1 V are received in the presence of AWGN that has a variance of 0.1V^2. Determine the optimum (minimum probability of error) detection threshold, yo, for matched filter detection if the a priori probabilities are: a) P(s=0.5 b) P(s1)=0.7 c) P(s1)=0.2