Question 1 0.29 pts A lab section has four student groups, and each group makes a single measure of the time it takes for a ball to drop a distance h. Below are the measurements made by each group: Group 1: 1.32s Group 2: 1.40s Group 3: 1.51s Group 4: 1.30s The instrumental uncertainty is in the thousandths of a second. How would you report the lab section's best estimate of the time it takes the ball to fall? The best estimate of the value is ( [ Select ] + / - [ Select ] ) seconds