Nokea
Green house gas—
- A. trap heat of planet
- B. reflects heat from the planet
- C. reduces temperature of atmosphere
- D. all
Correct Answer: A
Rationale: Greenhouse gases trap heat within Earth's atmosphere, contributing to global warming.
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The measure of spread most affected by one extreme value is the:
- A. Interquartile range
- B. Range
- C. Standard deviation
- D. Mean
Correct Answer: B
Rationale: The range depends only on the largest and smallest values, making it sensitive to outliers.
Prevalence is a
- A. Ratio
- B. Rate
- C. Proportion
- D. Mode of diseases
Correct Answer: C
Rationale: Prevalence is a proportion because it measures the number of existing cases in a population at a given time out of the total population.
For the cruise ship scenario, how would you display the time course of the outbreak?
- A. Endemic curve
- B. Epidemic curve
- C. Seasonal trend
- D. Secular trend
Correct Answer: B
Rationale: An epidemic curve is used to show the time course of an outbreak.
Targets means—
- A. degree of achievement
- B. result that you want to achieve
- C. both a. and b.
- D. none
Correct Answer: C
Rationale: Targets represent desired outcomes or achievements within a program.
Vitamin A in vegetable source is called:
- A. Retinol
- B. Carotene
- C. Panthothenic acid
- D. Calciferol
Correct Answer: B
Rationale: In vegetable sources, vitamin A is present as carotene, which is converted to retinol in the body.