Mathematics TERM II
Statistics
Class 10 Session 2021-2022
Case Study Questions 04
COVID-19 Pandemic: The COVID-19 pandemic, also known as coronavirus pandemic, is an ongoing pandemic of coronavirus disease caused by the transmission of severe acute respiratory syndrome coronavirus 2 among humans.
The following tables shows the age distribution of case admitted during a day in two different hospitals.
Table 1
| Age (in years) | 5-15 | 15-25 | 25-35 | 35-45 | 45-55 | 55-65 |
| No. of cases | 6 | 11 | 21 | 23 | 14 | 5 |
Table 2
| Age (in years) | 5-15 | 15-25 | 25-35 | 35-45 | 45-55 | 55-65 |
| No. of cases | 8 | 16 | 10 | 42 | 24 | 12 |
Refer to Table 1
1. The average age for which maximum cases occurred is
(a) 32.24 years
(b) 34.36 years
(c) 35.91 years
(d) 42.24 years
(c) 35.91 years
2. The upper limit of modal class is
(a) 15
(b) 25
(c) 35
(d) 45
(d) 45
3. The mean of the given data is
(a) 26.2
(b) 32.4
(c) 33.5
(d) 35.4
(d) 35.4
Refer to Table 2
4. The mode of the given data is
(a) 41.4
(b) 48.2
(c) 55.3
(d) 64.6
(a) 41.4
5. The median of the given data is
(a) 32.7
(b) 40.2
(c) 42.3
(d) 48.6
(b) 40.2