Identify the correct and incorrect statements. Correct Answer(s)

It is possible to estimate the country's opinion based on a small sample of 1,000 to 1,200 people.

Press Space to open Public-opinion surveys only tell you what the sample's opinions are, without providing any insight into the general population. 

Press Space to open A sample refers to the group selected by a researcher to represent the most important characteristics of an entire population. 

Press Space to open It is impossible to collect a random sample