38. mass scale 1 group g or close to 38 grams, which repeated a similar outcome, including close to accuracy, precision 1 group and the most accurate .
Group 1 has a mass weighing 38 grams or 38 grams, which is close to the same results repeatedly to keep the group close to the correct one with precision and accuracy as possible.
The 1 weighing the mass 38 g or close to the 38 g, which result in similar repeatedly includes close to the accuracy precision and accuracy 1 group most