A random signal X is uniformly distributed between 6 and 10 V. It is received in the presence of Gaussian noise N with mean 0 and variance 4. a) If the observed value Y = X + N is 4, find the best estimate of the signal amplitude. b) Repeat (a) if the received value Y is 8. c) Repeat (a) if the received value Y is 12. Answer a) 6; b) 8; c) 10