a restaurant chain wants to determine customers opinion of their new menu. which choice best represents a…

a restaurant chain wants to determine customers opinion of their new menu. which choice best represents a sample? a 1 out of every 30 customers. b all customers of the restaurant. c 250 customers who filled out complaint cards. d 250 customers who spent more than $25.
Answer
Brief Explanations:
A sample should be a representative subset of the population. Option A is a form of systematic sampling which can provide a representative view. Option B is the entire population, not a sample. Option C only includes customers with complaints, which is a biased group. Option D only includes customers who spent more than $25, also a biased group.
Answer:
A. 1 out of every 30 customers.