A worker at a landscape design center uses a machine to ll bags with potting soil. Assume that the quantity put in each bag follows 3 the continuous uniform distribution with low and high filling weights of10.4 pounds and 12.4 pounds, respectively. a. Calculate the expected value and the standard deviation of this distribution. (Do not round intermediate calculations. Round your \"Expected value" to 2 decimal places and "Standard deviation" answer to 4 decimal places.) 1.5/3 points awarded Expected value 11.40 9 Standard Scored deviation 0 5745 6 eBook Print References b. Find the probability that the weight of a randomly selected bag is no more than 11.7 pounds. (Round your answer to 2 decimal places.) Probability 0.35 9 c. Find the probability that the weight of a randomly selected bag is at least 11.2 pounds. (Round your answer to 4 decimal places.) Probability 0.6000 0