data={{7.4`,3.7`},{5.1`,2.6`},{6.9`,3.4`},{7.2`,3.6`},{1.4`,0.7`},{4.3`,2.1`},{5.1`,2.6`},{2.9`,1.5`},{7.2`,3.6`},{3.5`,1.7`},{4.7`,2.3`},{4.7`,2.4`},{9.3`,4.6`},{4.5`,2.2`},{6.`,3.`}};

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