What describes the total number of persons in the United States who are 18 years of age or older? Voting-age population Participation paradox Voter turnout Eligible voting population

## Step 1<br />The question is asking for the term that describes the total number of persons in the United States who are 18 years of age or older. This is a demographic term that refers to the number of people who are eligible to vote in a given jurisdiction.<br /><br />## Step 2<br />The term "Voting-age population" is the correct answer because it refers to the total number of persons in the United States who are 18 years of age or older. This term is used to describe the number of people who are eligible to vote in a given jurisdiction.<br /><br />## Step 3<br />The other options, "Participation paradox", "Voter turnout", and "Eligible voting population", do not accurately describe the total number of persons in the United States who are 18 years of age or older. <br /><br />## Step 4<br />"Participation paradox" is a term used to describe a situation where the expected outcome does not occur. <br /><br />## Step 5<br />"Voter turnout" refers to the percentage of eligible voters who cast a ballot in an election. <br /><br />## Step 6<br />"Eligible voting population" is a term that could be used to describe the same group of people as "Voting-age population", but it is not the term that is typically used in this context.