Please answer.

1. In a lab exercise, 2 groups are tasked to measure the length and width of a rectangular room . First group measured the length and width to be 3.5 m and 3.0 m and second group measured 3. 8 m and 3.2 m respectively. Each group now solves the area of the room. Calculate the deviation of each group. Present your answer in table form. Which group result is more precise? Which is less precise? 2. One of the most useful metals is iron . Its density is 7.87 g/cc. The class measured the mass of a gold sample and obtained 150.6 grams using analytical balance, The volume was measured using water displacement and it gave a value of 21.3 cc. Express how accurate is the measurement using absolute and relative error