Nokea
Median is almost equivalent to
- A. 25th percentile
- B. 50th percentile
- C. 75th percentile
- D. 10th percentile
Correct Answer: B
Rationale: The median corresponds to the 50th percentile, dividing the dataset into halves.
You may also like to solve these questions
Ottawa charter 1986 is related to:
- A. Reproductive health
- B. Health promotion
- C. Primary Health care
- D. Population development
Correct Answer: B
Rationale: The Ottawa Charter is dedicated to promoting health and well-being.
Population doubling time is
- A. Growth rate(GR%)/70
- B. 70/GR%
- C. 60/GR%
- D. GR%/60
Correct Answer: B
Rationale: Population doubling time is calculated using the formula 70/GR%, where GR% is the annual growth rate expressed as a percentage.
The reference protein is
- A. Egg
- B. Milk
- C. Soybean
- D. Meat
Correct Answer: A
Rationale: Egg protein is considered the reference protein due to its high biological value.
Male and female rats experimented with 4 different drugs, then which of the following study is conducted.
- A. chi square test
- B. z test
- C. t test
- D. none
Correct Answer: A
Rationale: Chi-square tests assess associations between categorical variables, useful here for analyzing drug effects across genders.
You are planning a case-control study of lung cancer to test the hypothesis that vegetable consumption is protective against lung cancer. Would you match on smoking? Explain your answer.
- A. Yes, because smoking is a known confounder for lung cancer.
- B. No, because matching on smoking will introduce overmatching.
- C. Yes, because smoking correlates with vegetable consumption.
- D. No, because smoking is unrelated to vegetable consumption.
Correct Answer: A
Rationale: Smoking is a strong confounder for lung cancer, and matching on smoking helps ensure comparability between cases and controls, preventing spurious associations.