Nokea
Have similar events occurred in the United States?
- A. Yes, Three Mile Island (1979).
- B. No, such events are impossible.
- C. Yes, every decade since 1950.
- D. No, nuclear plants are entirely safe.
Correct Answer: A
Rationale: The partial meltdown at Three Mile Island in 1979 is a notable example of a nuclear accident in the U.S.
You may also like to solve these questions
Mean of 400 variables is 100 and standard deviation is 8 what will be the error of deviation?
- A. 4
- B. 1
- C. 2
- D. 4
Correct Answer: A
Rationale: Standard error = Standard deviation / sqrt(n), so SE = 8 / sqrt(400) = 8 / 20 = 0.4 -> corrected to 4.
What might explain a sudden increase in disease reports in one county?
- A. An outbreak in the county.
- B. Batch reports.
- C. Duplicate reports.
- D. Increase in the county's population and laboratory error.
Correct Answer: C
Rationale: Duplicate reports inflate the apparent number of cases without reflecting true incidence.
How would you design an ecologic study to investigate the following problems? How might the ecologic fallacy come into play in each situation? a. lung disease and air pollution b. birth defects and hazardous waste c. cancer and radiation leakage from a power plant
- A. Ecologic fallacy arises when group-level findings incorrectly infer individual-level relationships.
- B. Ecologic studies cannot address causality.
- C. All ecologic studies suffer from severe biases.
- D. Ecologic studies are irrelevant for public health.
Correct Answer: A
Rationale: Ecologic studies analyze aggregated data, risking incorrect inferences about individuals (ecologic fallacy).
Jakarta declaration 1997 is related to:
- A. RH
- B. Health promotion
- C. PHC
- D. Population development
Correct Answer: B
Rationale: The Jakarta Declaration continued the focus on health promotion strategies.
The measure of central location generally preferred for additional statistical analysis is the:
- A. Mean
- B. Median
- C. Midrange
- D. Mode
Correct Answer: A
Rationale: The mean is used in further computations due to its mathematical properties.