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Based on a study, it was observed that amount of blood loss during major surgery is normally distributed with a mean 270.4 ml and a standard deviation of 63.1 ml. Let X be the amount of blood loss during major surgery of a randomly selected patient. 1. Describe the probability distribution of X and state its parameters 'u, and a: ' X-oa:::3%owe(j,ae> 2. Find the probability that the amount of blood loss during major surgery of a randomly selected patient is a. less than 220.5 ml. D (Round the answer to 4 decimal places) b. between 387.9 and 452 ml. D (Round the answer to 4 decimal places) c. more than 222.4 ml. D (Round the answer to 4 decimal places) 3. Find the SO-th percentile for the amount of blood loss during major surgery. [3 ml (Round the answer to 1 decimal place) ' ' \