According to EPA estimates, what percentage of houses built before 1978 have lead-based paint?

The correct answer is based on the Environmental Protection Agency's (EPA) estimates regarding lead-based paint in homes. Approximately 74% of houses built before 1978 are believed to contain lead-based paint. This figure is significant because it highlights the potential health risks associated with older homes, particularly for children and pregnant women. Lead exposure can result in serious health issues, leading to increased regulations and requirements for disclosure in real estate transactions involving older properties. Understanding this statistic is crucial for real estate professionals, as they must inform buyers and sellers about the risks associated with lead-based paint and comply with the necessary legal requirements related to lead hazards in these older homes.