The noise voltage in an electric circuit can be modeled as a Gaussian random variable with 0 mean and 10^-4 standard deviation
(a)What are the probabilities that the value of the noise exceeds 10^-4 and 4*10^-4? What is the probability the noise is between -2*10^-4 and 10^-4?
(b)Given that the value of the noise is positive, what is the probability that it exceeds 10^-4?