Answer:
- doing random phone surveys to ask how people are going to vote on a topic;
- researching and asking questions of certain demographics.
Step-by-step explanation:
Public opinion surveys are extremely important to understand social, political and economic issues, as they tend to reflect a population's opinion on the most diverse issues in their society. Public opinion polls are conducted at a time when it is important to measure the population's opinion on issues of national interest. when the goal is to measure global public opinion on the subject of immigration, it is best to do random telephone surveys to ask how people vote on a topic and ask questions about certain demographics, so it is possible to create statistic data that will show the response.