\"It. (9 points) A and B are graphical representations of normallg.r distributed random variables x and Y. respectively. with relative positions shapes, and sizes as shown. 1Which of the following statements about I and Y are true and which one is false? Explain your answer. a. Y has a smaller standard deviation than :It. b. The prob ability.r that Y falls within 2 standard deviations of its mean is greater than the probability.' that X falls within 2 standard deviations of its mean. 0. Y has a smaller mean than x