An unfair die is rolled, and the random variable X is the number you rolled. The corresponding probability distribution is given. X 1 2 3 4 5 6 P(X = X) 0.3 0.2 0.2 0.15 0.1 0.05 Give the expected value and the standard deviation of X, respectively. O A. 2.7 and 2.31 B. 3.5 and 1.871 C. 2.7 and 1.520 O D. 4.33 and 1.491 O E. 3.5 and 1.708