A small college has 800 students 10% of which are left handed suppose they take an srs of 4 students let x= the number of left handed students in the sample

Zachary has been trying to work on an essay for almost three hours, be he can't seem to focus for more than 15 or 20 minutes at a time. what should he do so that the quality of his work doesnt suffer because of poor concentration and lack of energy