Question

Casey performs a survey to determine what movie-goers think about movie theater popcorn. Which is an unbiased representative sample of the population?

A. every tenth customer that buys food from the snack bar
B. the first thirty customers to buy food other than popcorn
C. every fifth customer that buys food other than popcorn
D. the first 20 customers to buy popcorn

Answer 1

Customer who buys popcorn will be able to tell about its quality and taste, they will be appropriate for Casey's survey.
Now tell me which matches this?

Answer 2

D?

Answer 3

Yeah you're right:)

Answer 4

Thank you!!! :D