Statistics

POWER PLUS The A. The blood pressure of a person varies periodically in every heart beat. The lowest pressure measured in a cycle is called the diastolic pressure. Listed below are the diastolic pressures (mmHg) of 15 males aged 30 to 45: 84, 92, 74, 66, 100, 95, 99, 70, 83, 91, 78, 74, 85, 96, 85 1. Find the median, the lower quartile, and the upper quartile of the diastolic pressures. 2. Draw a box-and-whisker diagram for the data. 3. Find the range and the interquartile range of the diastolic pressures