Final answer:
The estimated number of eligible voters after reaching a minimum age requirement in the United States can be calculated using the voting-eligible population (VEP). This population includes citizens who are eighteen and older and are eligible to vote regardless of registration status.
Step-by-step explanation:
In the United States, the number of eligible voters after reaching a minimum age requirement can be estimated using the voting-eligible population (VEP), which includes citizens who are eighteen and older and are eligible to vote regardless of registration status.
This population may be further impacted by state-specific requirements, such as felony convictions or other criteria that can temporarily or permanently bar individuals from voting. Voter turnout, on the other hand, refers to the number of eligible voters who actually cast a ballot in an election.
In recent years, the voter turnout in U.S. presidential elections has ranged from about 55% to 65% of voting-age citizens.