select the correct answer. which sample is biased? a. interviews of random teenagers who attended a rock…

select the correct answer. which sample is biased? a. interviews of random teenagers who attended a rock concert to find out which musician teens enjoy most b. a poll randomly surveying half of the students in grade 7 to find out which seventh - grade teacher at the school is most liked c. an online survey by a game development company taken after the game closes to find out which features of a new game players liked the most d. a questionnaire delivered to two employees from every department of an office to find out whether employees like the new coffee machine

select the correct answer. which sample is biased? a. interviews of random teenagers who attended a rock concert to find out which musician teens enjoy most b. a poll randomly surveying half of the students in grade 7 to find out which seventh - grade teacher at the school is most liked c. an online survey by a game development company taken after the game closes to find out which features of a new game players liked the most d. a questionnaire delivered to two employees from every department of an office to find out whether employees like the new coffee machine

Answer

Brief Explanations:

A biased sample is one that does not represent the entire population. In option A, interviewing only teenagers who attended a rock - concert to find out which musician teens enjoy most will likely over - represent fans of rock music and under - represent fans of other music genres. So, it is a biased sample. Options B, C, and D use more random and representative sampling methods for their respective populations.

Answer:

A. interviews of random teenagers who attended a rock concert to find out which musician teens enjoy most