It should be obvious that education would be a significant predictor of juvenile crime statistics. Education level reflects competence and ability, likewise, lack of education often reflects a lack of competencies and abilities. Few commit crimes for the sheer joy of breaking the law. Usually crimes are done out of necessity.
No education level is not a significant predictor in juvenile offender statistics. You cannot base how a child will grow up to be based upon how smart he or she is. Family envinorment is what plays a huge rile in how a child carries him or herself. If you are abused at home you are more then likely to become an abuser.
No, the only way that education level is related is because of poverty and lack of jobs, but you can have all the education in the world, if there are no jobs for you where you live it doesn't matter. Many juvenile offenders come from bad areas where they are exposed to crime or violence or are low income.
No, education level is not a significant predictor in juvenile offender statistics, because there are children from very wealthy homes that misbehave too. The single greatest predictor of whether a child will grow up to have a criminal history is if the parent has a criminal history. They teach the children not to obey the law.