In the US, systolic blood pressure is a random variable that is normally distributed with a mean of 121 mmHg and a standard deviation of 14.5 mmHg. Let X be the systolic blood pressure of a randomly selected patient. 1. Describe the probability distribution of X and state its parameters μ and o: X - Select an answer (μ = ], 0 = | 2. Find the probability that the systolic blood pressure of a randomly selected patient is a. less than 147 mmHg. (Round the answer to 4 decimal places) b. between 160 and 161 mmHg. c. more than 153 mmHg. (Round the answer to 4 decimal places) (Round the answer to 4 decimal places) 3. Find the 50-th percentile for the systolic blood pressure. decimal place) mmHg (Round the answer to 1

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