Let X be a normal random variable with u-10 and a- 1.5 and Y be a normal random variable with u- 2 and a- 0.25. Assume x and r are

independent. Find the following probabilities. Round your answers to three decimal places (e.g. 98.765). (a) P(X < 9, Y < 2.5) (b)P(X > 8, Y < 2.25) (c)P(8.5 <= X <= 11.5, Y > 1.75) (d)P(X < 13, 1.5 <= Y <= 1.8)