Casey performs a survey to determine what students think about the sale offers in her store. Which is an unbiased representative sample of the population?

every tenth customer that does not buy something

the first 30 customers that do not buy something

every twentieth customer that enters her store

the first 30 customers that buy something

Question

Casey performs a survey to determine what students think about the sale offers in her store. Which is an unbiased representative sample of the population?

 every tenth customer that does not buy something

 the first 30 customers that do not buy something

 every twentieth customer that enters her store

 the first  30 customers that buy something

cwrw238 · Answer

every twentieth customer that enters her store

charlotte123 · Answer

Thats what I was thinking :O THANKS SO MUCH :D

cwrw238 · Answer

yw