Question: Let X be a random variable that represents the diastolic blood pressure (DBP) of the population of 18-to 74-year-old men in the United States who

Let X be a random variable that represents the diastolic blood pressure (DBP) of the population of 18-to 74-year-old men in the United States who are not taking any corrective medication. Suppose that X has mean 80.7 mm Hg and standard deviation 9.2.
(a) Obtain a bound on the probability that the DBP of this population will assumes values between 53.1 and 108.3 mm Hg.
(b) In addition, assume that the of X is approximately normal. Using the normal table, find P (53.1 ≤ X ≤ 108.3). Compare this with the empirical rule.

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