A machine is making a special screw, which is to measure 51 mm in length. The inspector randomly selects 10 screws from a three-hour output and records the measurements as; 48.2 mm, 49.0 mm, 49.7 mm, 48.7 mm, 52.1 mm, 51.1 mm, 50.9 mm, 51.0 mm, 51.1 mm, and 50.8 mm. Determine the range and standard deviation of the screw lengths.