Two students, Carmen and George, determined the mass of an object on two different balances. The accepted mass of the object was 2.355 g. George obtained values of 2.531 g, 2.537 g, 2.535 g and 2.533 g. Carmen obtained values of 2.350 g, 2.404 g, 2.296 g and 2.370 g. Which statement best describes the results that were obtained by George and Carmen?
George's results were more accurate that Carmen's.
Carmen's results were less accurate than George's.
George obtained the better precision.
Carmen obtained the better precision.