A recoded education variable classifying persons into one of four groups: 1. less than high school (educ takes on a value lessthan or equal to 60); 2. high school (educ takes on a value between 70 and 73); 3. some college (educ takes on a valuebetween 80 and 100); and 4. college (educ takes on a value of 110 or greater). in excel