Answer:
Option OD - 9
Step-by-step explanation:
Given : On the cardiac ward of a local hospital, there are 7 nursing assistants. The seven assistants have 7, 8, 5, 9, 10, 10, and 14 patients, respectively, that they assist.
To find : What is the average number of patients per nursing assistant?
Solution :
The average number of patients per nursing assistant is given by the division of sum of number of patients by total number of nursing.
So, ![\text{Average} =\frac{\text{Sum of patients}}{\text{Number of assistants}}](https://tex.z-dn.net/?f=%5Ctext%7BAverage%7D%20%3D%5Cfrac%7B%5Ctext%7BSum%20of%20patients%7D%7D%7B%5Ctext%7BNumber%20of%20assistants%7D%7D)
![\text{Average} =\frac{7+8+5+9+10+10+14}{7}](https://tex.z-dn.net/?f=%5Ctext%7BAverage%7D%20%3D%5Cfrac%7B7%2B8%2B5%2B9%2B10%2B10%2B14%7D%7B7%7D)
![\text{Average} =\frac{63}{7}](https://tex.z-dn.net/?f=%5Ctext%7BAverage%7D%20%3D%5Cfrac%7B63%7D%7B7%7D)
![\text{Average} =9](https://tex.z-dn.net/?f=%5Ctext%7BAverage%7D%20%3D9)
Therefore, The average number of patients per nursing assistant is 9.
So, Option OD is correct.