The bar graph shows the number of patients visiting a clinic during a period of time. The average number of patients visiting the clinic is 9 patients per hour.
- Which date is most probably a Sunday?
- What is the total number of patients visiting the clinic from 16 Sep to 20 Sep?
Clinic opening hours |
Mon to Sat |
10 a.m. to 7 p.m. |
Sun |
10 a.m. to 1.50 p.m. |
(a)
From 10 a.m. to 1.50 p.m.: 3 h 50 min
20 Sep is Sunday as it has the least patients.
(b)
Number of patients
16 Sep: 80
17 Sep: 72
18 Sep: 67
19 Sep: 56
20 Sep: 27
Total number of patients visiting the clinic
= 80 + 72 + 67 + 56 + 27
= 302
Answer(s): (a) 20 Sep; (b) 302