Blood pressure: A blood pressure measurement consists of two numbers: the systolic pressure, which is the maximum pressure taken when the heart is contracting, and the diastolic pressure, which is the minimum pressure taken at the beginning of the heartbeat. Blood pressures were measured, in millimeters of mercury (mmHg), for a sample of 10 adults. The following table presents the results. Use a TI-84 Plus calculator to answer the following.
Systolic Diastolic
118 88
133 91
112 75
130 76
116 70
115 83
113 77
123 77
119 69
134 87
Based on results published in the Journal of Human Hypertension
Part 1 of 3
(a) Construct a scatterplot of the diastolic blood pressure (y) versus the systolic blood pressure (x).