4. The systolic blood pressure reading for a person varies throughout the day. Assume that for a certain person their readings follow a normal distribution with mean 120mmHg and standard deviation 25mmHg. A. What's the probability that a blood pressure reading for the person with the distribution above is between 110 and 125? B. What's the probability that a blood pressure reading for the person with the distribution above is less than 130? C. If a person's systolic blood pressure is more than 140, they are considered hypertensive. What's the probability that a single reading would indicate that this person is hypertensive?

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