A randomized sample survey is one in which the people responding are chosen at random by the organization conducting the survey. The respondents don’t sign up to participate.
Every randomized sample survey attempts to estimate a measurement for the full population being studied by measuring a small sample. There will always be some difference between the sample and the population. Researchers estimate how much this difference is by using two related statistics: the MOE (Margin of Error) and the confidence interval. The 2022 resident survey has an MOE of +/- 3.2% with a confidence interval of 95%. This means that the true population measurement for the questions on this survey would fall within 3.2% of the sample measurement 95% of the time. In only 5% (100% - 95%) of the possible measures would the population measure more than 3.2% difference.