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 Apr to 20 Apr?
Clinic opening hours |
Mon to Sat |
9 a.m. to 4 p.m. |
Sun |
9 a.m. to 1.20 p.m. |
(a)
From 9 a.m. to 1.20 p.m.: 4 h 20 min
18 Apr is Sunday as it has the least patients.
(b)
Number of patients
16 Apr: 53
17 Apr: 56
18 Apr: 26
19 Apr: 56
20 Apr: 91
Total number of patients visiting the clinic
= 53 + 56 + 26 + 56 + 91
= 282
Answer(s): (a) 20 Apr; (b) 282