Question

The purpose of random sampling in a poll is to ensure that __________.



all questions are answered correctly



the respondents are all the same age



the sample is a representative cross-section of the public



the respondents are all the same gender

Answer 1

The purpose of random sampling in a poll is to ensure that the sample is a representative cross-section of the public. In a random sample, no specific people are chosen, they are all chosen at random. This helps to ensure that the sampling is an accurate representation of the public opinion in general and is not skewed.

Answer 2

the sample is a representative cross-section of the public