Suppose that the mean systolic blood pressure for women over age seventy is 132 mmHg (millimeters of mercury), with a standard devlation of 9 tmmHg. Suppose that the blood pressures are normally distributed. Complete the following statements. (a) Approximately 68% of women over seventy have blood pressures between mmHg and mmHg. (b) Approximately ? v of women over seventy have blood pressures between 105 mmHg and 159 mmHg.

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