To determine the percentage of the population that was under the age of 18 in the US in 2010, let's carefully examine the data provided in the table and the answer choices.
From the table, we see that:
- The age group "Under 18" represents 24.0% of the population.
Now, let's compare this percentage to the provided answer choices:
- nearly 10 percent
- nearly 25 percent
- nearly 50 percent
- nearly 75 percent
Given the percentage value of 24.0%, the closest match among the provided answer choices is "nearly 25 percent." Therefore, the best choice is:
nearly 25 percent