Final answer:
Benchmark polls can be represented by a thermometer symbol, tracking polls by a line graph, exit polls by a voting booth symbol, and push polls by a megaphone symbol. Benchmark polls and tracking polls are useful in political campaigns, while exit polls provide valuable insights but push polls are unethical and manipulative.
Step-by-step explanation:
Benchmark polls can be represented by a thermometer symbol, indicating the measurement of public opinion over time. Tracking polls can be represented by a line graph, showing the fluctuation of public opinion. Exit polls can be represented by a voting booth symbol, representing the polling of voters after they have voted. Push polls can be represented by a megaphone symbol, indicating the persuasive nature of these polls.
Benchmark polls are important in political campaigns as they provide a baseline measure of public opinion and help candidates gauge their standing among voters. Tracking polls are useful for monitoring the effectiveness of campaign strategies and messaging. Exit polls provide valuable insights into voter behavior and can help identify trends and patterns in voting patterns. Push polls, however, are seen as unethical and manipulative, as they aim to influence rather than measure public opinion.