CompTIA
DA0-001 · Question #34
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
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Data Concepts and Environments
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
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Topics
#Sampling Methods#Representative Sample#Survey Bias#Data Collection