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Real-Life Activities

Real-Life Math

With a week left in the election campaign, voters are beginning to make up their minds about who they want as their country's leader. To help gauge how the voters are planning to cast their ballots, you design and analyze a poll.

You are especially interested in finding out how many people are planning to support your candidate.

"A pollster's job is very analytical," says Holly Schoenke. She is the executive director of the American Association of Political Consultants. "There is a lot of deciphering numbers, logic and mathematical analysis. Consultants count up voter numbers in precincts to help them target precincts and run their campaign."

This is the question you pose for your public opinion poll:

If you were to go to the ballots tomorrow, which candidate would you most likely support?

Support Leader A: 42 percent
Support Leader B: 29 percent
Support Leader C: 10 percent
Support Leader D: 8 percent
Support Leader E: 9 percent

  1. You are the political strategist for Leader B. How many percentage points is she behind the top candidate?
  2. You think you could win over voters from Leader D because your party platform is similar to theirs. If your polling sample was 2,500 people, how many of them have decided to vote for Leader D?