Question

identifying representative samples
alana and ramiro are writing an article for the school newspaper about whether their classmates prefer to buy their lunch or bring their lunch from home. alana surveyed every third student who entered the lunchroom and determined that 53% of students prefer to bring lunch from home. ramiro surveyed every other student in line to buy lunch, and found that only 14% of students prefer to bring their lunch from home.
likely to result in a biased sample.
alanas method is
ramiros method is
both methods are
neither method is

Explanation:

A representative sample must reflect the entire student population (those who buy lunch and those who bring lunch). Alana surveys every third student entering the lunchroom, which includes both groups. Ramiro only surveys students in line to buy lunch, excluding students who brought lunch, so his sample is limited and will not accurately represent the whole class's preference, leading to bias.

Answer:

Ramiro's method is likely to result in a biased sample.