Question

a researcher wants to survey people from different age groups to analyze voting patterns. which type of survey will best accomplish this goal?
systematic random sampling
voluntary sampling
convenience sampling
stratified sampling

Explanation:

To determine the best survey for analyzing voting patterns across different age groups, we analyze each sampling method:

• Systematic random sampling: Selects every nth individual from a list. It doesn't ensure representation of different age groups.
• Voluntary sampling: Relies on people volunteering, which often leads to biased samples and may not include all age groups.
• Convenience sampling: Uses easily accessible individuals, which is likely to miss certain age groups and introduce bias.
• Stratified sampling: Divides the population into subgroups (strata, here age groups) and samples from each stratum. This ensures each age group is represented, making it ideal for analyzing voting patterns across different age groups.

Answer:

stratified sampling