Internet search results can sometimes be the Wild West! Results can come from a variety of websites and encompass multiple different source types, ages, and viewpoints. One way to quickly limit your search results to educational or government sites is to add site:edu or site:gov to the end of your search. These sites tend to be more reliable and informative. Please note that there should be no spaces in this phrase.
site:edu limits your search to results from educational websites, and specifically educational institutions, mostly colleges and universities.

site:gov limits your search to results from government websites. These are typically U.S. federal government sites, but may include some state or local governments.

Government sites are also good for reports and statistics. Include the word statistics or data in your search.