Suppose that the mean systolic blood pressure for women over age seventy is 131 mmHg (millimeters of mercury), with a standard deviation of 9 mmHg. Suppose that the blood pressures are normally...

Extracted text: Suppose that the mean systolic blood pressure for women over age seventy is 131 mmHg (millimeters of mercury), with a standard deviation of 9 mmHg. Suppose that the blood pressures are normally distributed. Complete the following statements. (a) Approximately ? v of women over seventy have blood pressures between 104 mmHg and 158 mmHg. (b) Approximately 68% of women over seventy have blood pressures between mmHg and O mmHg .