12 1.21 Using the Gaussian Q function Express each of the given probabilities in terms of the standard Gaussian complementary CDF Q. (a) P{X 16}, where X has the N(10,9) distribution. (b) P{X 16}, where X has the N(10,9) distribution. (c) P{|X 2Y| > 1}, where X and Y are independent, N(0,1) random vari ables. (Hint: Linear combinations of independent Gaussian random variables are Gaussian.)