What is the probability that it will be 135 or less

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Problem: Jim's systolic blood pressure is a random variable with a mean of 145 mmHg and a standard deviation 0f 20 mmHg. For Jim's age group. 140 is the threshold for high blood pressure

a. If Jim's systolic blood pressure is taken at a randomly chosen moment, what is the probability that it will be 135 or less. (Round answer to 4 decimal places

b. If Jim's systolic blood pressure is taken at a randomly chosen moment, what is the probability that it will be 175 or more. (Round answer to 4 decimal places

c. If Jim's systolic blood pressure is taken at a randomly chosen moment, what is the probability that it will be 125 or 165. (Round answer to 4 decimal places

Reference no: EM132465265

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