19. A male nursing home patient has his pulse taken every day. His pulse readings (beats per minute) over a 1-month period appear below.
72 | 56 | 56 | 68 | 78 | 72 | 70 | 70 | 60 | 72 | 68 | 74 |
76 | 64 | 70 | 62 | 74 | 70 | 72 | 74 | 72 | 78 | 76 | 74 |
72 | 68 | 70 | 72 | 68 | 74 | 70 |
19.
(a)
A11
(b) ;
(c) The median or mode of 72 beats/min best describes a "typical" pulse rate for this man. There are a few days when the man's pulse rate was very low. These low values tend to pull the mean down.