Answer to Question 1
ANS: A
Multiple biases may exist in a convenience sample, some of which may be subtle and unrecognized. There is little opportunity to control for bias in a convenience sample.
Quota provides for more representation than convenience sampling.
Random sampling provides the most representative sample for studies.
Stratified random sampling is a form of probability sampling and provides a representative sample for study.
Answer to Question 2
ANS: B
Multiple biases may exist in a convenience sample, some of which may be subtle and unrecognized. There is little opportunity to control for bias in a convenience sample.
Cluster sampling is a type of random sampling and much stronger than convenience sampling.
Quota provides for a more representative sample than convenience sampling, so it is stronger.
Systematic sampling is a type of random sampling and much stronger than convenience sampling.
Population Patterns
Population distribution (dispersion)
Population size
The population of algae is compared to the population of corals in a given sampling area
The population of Asia increases rapidly, the demand for food and water is also growing
World Population, 1850–2150