Every twenty-fifth person who ordered a subscription to a weekly news magazine was contacted by market researchers to complete a survey of opinions regarding the magazine's contents. The researchers were most clearly employing a technique known as

The answer is random sampling.

Explanation:

Random sampling is a technique that involves selecting random, unrelated participants to carry out observations. The results can then be generalised to larger groups.

The greatest advantage of random sampling is that it's unbiased. However, it's possible that the participants do not accurately represent the larger population.

i would think yes.

explanation:

because we have every natianlity in our country which makes us so diverse and unique. that's why in a lot of cities there are places like little italy, koreatown, chinatown.  

what is the question?