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ACT Question for December 17th

With each heartbeat, a person's blood pressure rises from a lower value, termed the systolic pressure, to an upper value, termed the diastolic pressure, and then drops back to the lower value again.  Thus, when a doctor determines a patient's blood pressure, both the systolic and diastolic pressure normally reported.  However, a single value, which may be termed the "weighted mean pressure," can also be calculated.  This is approximately equal to the following:

Weighted mean pressure = 1/3 * systolic pressure + 2/3 * diastolic pressure

Thus, the weighted mean pressure lies between the systolic and diastolic pressures, but it is closer to the diastolic pressure because the blood pressure remains near this value for most of each heartbeat.

The  typical systolic and diastolic pressures, recorded at a doctor's office, for males and females are shown in Tables 1 and 2, respectively.  whereas Table 2 shows the same for females treated at a doctor's office.  Additionally, the ratio between the pressures and the difference between the pressures have been calculated.

Hypertension is a medical condition in which a person's systolic blood pressure is significantly above 120. 

Based on the information presented, which of the following groups had the highest weighted mean pressure?

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Question ID: 5979