density of pure water

Question

The density of pure water is 1 g/ml. Four students measured and calculated the density of pure water samples. The results are as follows: student 1 got 0.85 g/ml, student 2 got 0.94 g/ml, student 3 got 0.95 g/ml, and student 4 got 1.3 g/ml. Which student had the smallest error in their measurement?

Answer 1

Student 1 was off by 0.15 or 15%

Student 2 was off by 0.14 or 14%

Student 3 was off by 0.05 or 5%

Student 4 was off by 0.30 or 30%

Which student do you think had the smallest error?