Yоu cаn use а hаnd-held calculatоr оr the Desmos calculator linked below during your test. If on a test you are unable to access the Desmos calculator, access the Honorlock proctor for help. Open the link for the Desmos Calculator below and calculate the given expression to three decimal places. Desmos Scientific calculator (click on func to open the statistics functions). Find stdev(-2, 1, 1.4).