2021 P2 Q88
Q1. The following table shows the mortality figures among hazardous industry workers:
| Age group | National death rate (per 1000) | Worker population | Observed deaths |
| --- | --- | --- | --- |
| 25-34 | 2.0 | 3000 | 8 |
| 35-44 | 3.5 | 2000 | 9 |
| 45-54 | 6.0 | 2000 | 13 |
What is the Standardized Mortality Ratio (SMR) for the hazardous industry workers (as compared to national population)?
- 100
- 110
- 120
- 130
Answer & explanation — reveal it in the interactive practice above.
PYQ 2020–2025 — page 132
2021 P2 Q90
Q2. A diagnostic test was applied to a group of patients. As per the information provided, the test detected 60 true positives and missed 100 cases (false negatives). What is the sensitivity of the test?
- 20.5%
- 37.5%
- 60%
- 97%
Answer & explanation — reveal it in the interactive practice above.
PYQ 2020–2025 — page 133
2021 P2 Q91
Q3. For a given data set, consider the following statements:
1. The range is 16
2. The median is 98
3. The standard deviation is √10
Select the correct answer using the code:
- 1 and 2 only
- 2 and 3 only
- 1 and 3 only
- 1, 2 and 3
Answer & explanation — reveal it in the interactive practice above.
PYQ 2020–2025 — page 133
