The distribution of diastolic blood pressure for men is normally distributed with a mean of 80 mmHg and a standard deviation of 25 mmHg.

(a) Men who have diastolic blood pressure greater than 120 mmHg are at high risk of heart disease. What is the probability that a man is at high risk?

(b) Low blood pressure occurs when the diastolic blood pressure is less than 60 mmHg. What is the probability that a man has low blood pressure?

(c) A concerned doctor told his male patient that only 2% of the men had diastolic blood pressure greater than the patient's. What is the patient's diastolic blood pressure?

Sorry this is multiple questions...