1. Using A meter stick have each person in the group independently measure the diameter of the sphere provided. Record the measurements and state their percentage uncertainties. 2. Determine and record the average diameter of the sphere, the standard deviation of the measurements and the percent uncertainty in the average diameter and the percent error from the excepted value of 12.0 cm.

O O 1. Using a meter stick have each Student 1: Diameter = 12.0 cm % Uncertainty = person in the group independently X. Crawford measure the diameter of the sphere provided. Record the measurements Student 2: Diameter = 11.7 cm % Uncertainty and state their percent uncertainties. M. Navarro 2. Determine and record the average Student 3: Diameter = 11.5 cm % Uncertainty = diameter of the sphere, the standard A. Daniels deviation of the measurements and the percent uncertainty in the average Student 4: Diameter = 11.8 cm % Uncertainty = diameter, and the percent error from the accepted value of 12.0 cm. Average Diameter = 11.75+/-1.06% ??? Std Dev = 0.12cm ? % Error = 2.1T ?1