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 11 patients per hour.
- Which date is most probably a Sunday?
- What is the total number of patients visiting the clinic from 13 Jan to 17 Jan?
Clinic opening hours |
Mon to Sat |
9 a.m. to 6 p.m. |
Sun |
9 a.m. to 1.50 p.m. |
(a)
From 9 a.m. to 1.50 p.m.: 4 h 50 min
16 Jan is Sunday as it has the least patients.
(b)
Number of patients
13 Jan: 91
14 Jan: 75
15 Jan: 85
16 Jan: 20
17 Jan: 71
Total number of patients visiting the clinic
= 91 + 75 + 85 + 20 + 71
= 342
Answer(s): (a) 16 Jan; (b) 342