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 7 Sep to 11 Sep?
Clinic opening hours |
Mon to Sat |
10 a.m. to 5 p.m. |
Sun |
10 a.m. to 1.20 p.m. |
(a)
From 10 a.m. to 1.20 p.m.: 3 h 20 min
11 Sep is Sunday as it has the least patients.
(b)
Number of patients
7 Sep: 61
8 Sep: 55
9 Sep: 62
10 Sep: 92
11 Sep: 32
Total number of patients visiting the clinic
= 61 + 55 + 62 + 92 + 32
= 302
Answer(s): (a) 11 Sep; (b) 302