Question

PLZ HELP ASAP IM ON THE TEST NOW 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 1

i think (a) because they interviewed people who were already at a rock concert about what musician they enjoy the most

Answer 2

A. Interviews of random teens at a rock concert

These teens are all fans of the same music because they are attending the same concert. They cannot accurately represent all teens music choices because they are all bias toward the same music style. They are especially excited about it at the concert so responded are even more skewed.