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City Councilwoman Kelly wants to know whether the residents of her district support a proposed school redistricting plan.Which of the following survey methods will allow Councilwoman Kelly to make a valid conclusion about whether residents of her district support the proposed plan?Choose answer:(A) Ask residents of her district whose names are chosen at random.(B) Ask parents at the local playground.
Full solution
Q. City Councilwoman Kelly wants to know whether the residents of her district support a proposed school redistricting plan.Which of the following survey methods will allow Councilwoman Kelly to make a valid conclusion about whether residents of her district support the proposed plan?Choose answer:(A) Ask residents of her district whose names are chosen at random.(B) Ask parents at the local playground.
- Represent Entire District: To make a valid conclusion, the survey must represent the entire district population, not just a specific group.
- Random Selection: Option (A) involves selecting residents at random, which is likely to provide a more representative sample of the entire district.
- Biased Sample: Option (B) involves asking parents at the local playground, which could be biased as it does not represent the entire district population.
- Choose Random Residents: Therefore, the best method for Councilwoman Kelly to get a valid conclusion is to choose a random sample of residents from her district.
