in order to find out what the best restaurant is in town you call 25 of your friends at random. what type of survey is this?

Question

a- biased
b-random
c-systematic
d-stratified

my answer is biased because you may pick at random but they are all still your friends.

Answer 1

Actually, the type of survey described here is a random survey. By calling 25 of your friends at random, you are selecting individuals from the population without any particular bias or predetermined criteria. The fact that they are your friends does not necessarily make the survey biased, as long as your friends represent a diverse range of opinions and preferences when it comes to restaurants. However, if your friends share similar tastes or are not a representative sample of the population, it could introduce bias into your survey results.