Most countries have a mixed economy true or false? Sorry this is a dumb question but idk

Most industrial countries have mixed economies, but vary in the degree of government involvement in the society.

by using  production possibilities graph.  opportunity costs are key expenses in financial matters and are utilized as a part of registering money saving advantage investigation of a venture. such expenses, be that as it may, are not recorded in the record books but rather are perceived in basic leadership by processing the money costs and their subsequent benefit or misfortune.