data={{3.6,4.0},{4.0,4.5},{4.1,4.4},{4.2,4.6},{4.2,4.7},{4.3,4.6},{4.4,4.7},{4.6,5.0},{4.6,5.1},{4.8,5.1},{4.8,5.1},{5.0,5.2},{5.1,5.4},{5.2,5.3}};

Export["/Users/troyday/Desktop/Transfer/BB Chapter11/data.txt",data,"TSV"]