DA0-001 · Question #34
DA0-001 Question #34: Real Exam Question with Answer & Explanation
The correct answer is D: Surveys sent to 100 randomly selected homes that are reflective of the population. Surveys sent to 100 randomly selected homes that are reflective of the population is the most likely method to result in a representative sample. This is because it ensures that the sample is taken from a broad range of the population, and not just limited to a specific area or t
Question
A county in Illinois is conducting a survey to determine the mean annual income per household. The county is 427sq mi (2.65q km). Which of the following sampling methods would MOST likely result in a representative sample?
Options
- AA stratified phone survey of 100 people that is conducted between 2:00 p.m. and 3:00 p.m.
- BA systematic survey that is sent to 100 single-family homes in the county
- CSurveys sent to ten randomly selected homes within 5mi (8km) of the county's office
- DSurveys sent to 100 randomly selected homes that are reflective of the population
Explanation
Surveys sent to 100 randomly selected homes that are reflective of the population is the most likely method to result in a representative sample. This is because it ensures that the sample is taken from a broad range of the population, and not just limited to a specific area or time. It also ensures that the sample is a random selection, which minimizes the risk of selection bias. This is considered a better method than the other options, which may result in a biased sample due to the specific methods used (such as only surveying homes within a specific area or at a specific
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