From the article posted...
West Virginia is the least educated U.S. state, with an overall score of 23.15. West
Virginia ranks last for Educational Attainment with the lowest shares of people with associate’s degrees or some college experience and those with bachelor's degrees, at 20.6%. West Virginia also has the fourth-lowest average university quality.
Mississippi has a score of 25.35. As the second-least educated state, it ranks 49th for Educational Attainment and 47th for Quality of Education. Mississippi has the third-lowest share of high school diploma holders at 84.5%, the second-lowest share of bachelor's degree holders, and the fifth-lowest share of both people with associate's degrees or college experience and graduate degree holders.
Louisiana holds the third-place spot for the least educated states. Louisiana has a score of 25.75 and ranks 48th for Educational Attainment and 45th for Quality of Education. Louisiana has the fourth-lowest share of high school diploma holders and bachelor's degree holders, the second-lowest share of associate’s degree holders, and the fourth-lowest share of graduate degree holders.
Arkansas's score is 31.00 out of 100. Arkansas is in 47th for Educational Attainment, and its Quality of Education rank is an improvement to 24th. Arkansas has the third-lowest share of associates, bachelor's, and graduate degree holders.
Alabama is the country's fifth-least educated state. Alabama's Education Attainment rank is 45, and its Quality of Education rank is 38, with a total score of 33.08. About 22% of Alabama adults have a bachelor's degree or higher, which is lower than the 25% nationwide average; however, this gap is closing.
On the other hand, the most educated U.S. states are
Massachusetts (81.82),
Maryland(78.48),
Connecticut(72.68),
Colorado (69.82), and
Vermont (69.67).