6 2 points Let Xil Normal (10, 44) and let Xyl Normal (5, 25) be two independent Normal random variables. Which of the following are true about the random variable Y X1-2 X2? Select all that apply (Hint: there are three correct responses). Note: The notation X ~Normal (a, b) should be interpreted as: " X is a Normal random variable with a mean of "a" and a variance of "b"." Y is Normal with a zero mean. Y has a variance of -6. Y is Normal with a nonzero mean. Y has a zero skewness. Y has a standard deviation of 12. O Y has a variance of 94