A recent poll suggests that 69% of Canadians use their mobile device to comparison shop while they are in a store. You are to randomly pick 4 Canadians from a population made up of people who have a mobile device. You ask each the question: Do you use your mobile device to comparison shop while you are in a store? The number who respond "yes" is counted and represented by the random variable X. Its probability distribution is given below. X 0 1 2 3 4 P(X = :) 0.0092 0.0822 0.2745 0.40740.2267 (a) What can you say about the tendency of X? Select ALL that apply. A. X is more likely to take on larger rather than smaller values. B. The probability distribution of X is perfectly symmetric. O C. X is more likely to take on smaller rather than larger values. OD. The probability distribution of X is left-skewed. O E. The probability distribution of X is right-skewed. (b) Find the expected value, or mean, of X. E(X) = Hx = (use two decimals in your answer) (c) Find the standard deviation of X. SD(X) = ox = (use two decimals in your answer)