- + Automatic Zoom 121 () The probability distribution of a random variable X is given below. X =0 2 4 6 8 P(X =) 0.25 0.25 0.40 0.10 i Calculate the expected value of X. (2 marks) ii. Calculate the standard deviation of X to four decimal places. (3 marks) iii Calculate P(X 2) to four decimal places. (3 marks) iv. Does X have ammiform distribution? Briefly justify your answer. (2 marks) (f) Two shoppers ranked eight products listed on a retailer's website in their preferred order as follows: Product JABCDEFGH Shopper 1 6 5 8 2 3 7 Shopper 2 7 8 6 Calculate the Spew it's val