Nokea
30 babies were born in hospital, 10 were less than 2.5 kg and 20 were greater than 2.5 kg the average is
- A. Arithmetic mean
- B. Median
- C. Geometric mean
- D. Mode
Correct Answer: B
Rationale: The median divides the data into two equal parts, making it suitable here.
You may also like to solve these questions
obesity occurs due to:
- A. more consumption of calorie
- B. more consumption of protein
- C. more consumption of vitamins
- D. None
Correct Answer: A
Rationale: Obesity results from excessive calorie intake compared to energy expenditure.
A case definition during an outbreak investigation should specify:
- A. Clinical features
- B. Time
- C. Place
- D. Person
Correct Answer: A
Rationale: A good case definition includes clinical criteria and details on time, place, and person to ensure consistent identification of cases.
A random-digit dialed survey conducted in the City of Long Beach, California, reported that a greater proportion of nonsmokers endorsed a ban on smoking in alcohol-serving establishments than did smokers. What type of study design was this?
- A. Cross-sectional study
- B. Case-control study
- C. Ecologic study
- D. Cohort study
Correct Answer: A
Rationale: This is a cross-sectional study as it captures attitudes at one point in time without follow-up.
Identify some infectious diseases that could reach pandemic occurrence during the 21st century.
- A. Influenza, Ebola, Zika.
- B. Diabetes, hypertension.
- C. Osteoporosis, arthritis.
- D. Cancer, Alzheimer's.
Correct Answer: A
Rationale: Emerging infectious diseases with high transmissibility, such as influenza and Ebola, pose significant pandemic risks.
In the study of COPD which test will be suitable:
- A. Z test
- B. t- test
- C. chi-square test
- D. anova test
Correct Answer: B
Rationale: T-tests are commonly used to compare means in studies like those evaluating COPD treatments.