In: Advanced Math
Systolic blood pressure was measured in a group of 30 patients diagnosed with hypertension:
| 
 Patient No.  | 
 1  | 
 2  | 
 3  | 
 4  | 
 5  | 
 6  | 
 7  | 
 8  | 
 9  | 
 10  | 
| 
 Blood pressure, mmHg  | 
 155  | 
 138  | 
 126  | 
 152  | 
 164  | 
 142  | 
 128  | 
 132  | 
 170  | 
 145  | 
| 
 Patient No.  | 
 11  | 
 12  | 
 13  | 
 14  | 
 15  | 
 16  | 
 17  | 
 18  | 
 19  | 
 20  | 
| 
 Blood pressure, mmHg  | 
 129  | 
 122  | 
 128  | 
 127  | 
 141  | 
 132  | 
 127  | 
 145  | 
 138  | 
 138  | 
| 
 Patient No.  | 
 21  | 
 22  | 
 23  | 
 24  | 
 25  | 
 26  | 
 27  | 
 28  | 
 29  | 
 30  | 
| 
 Blood pressure, mmHg  | 
 127  | 
 147  | 
 120  | 
 125  | 
 132  | 
 123  | 
 138  | 
 182  | 
 120  | 
 158  |