How do you calculate total uncertainty?

Data Sheet Instrumental Uncertainty: IV instrument Units Smallest Division on Instrument .1 meter stick cm cm Units What precision do you claim instead? .1 Justify your decision here smallest measure on ruler Smallest Division on DV instrument Instrument Magentometer App .01 What precision do you claim instead? .01 Justify your decision here smallest measure given Data: Units IV IV IV IV IV IV mt ImT IV IV cm 5 10 DV 15 DV DV DV DV DV DV DV 53.6 51.2 53.1 53.4 49.9 49.4 50.3 49.1 48.3 47.9 48.6 47.1 mT Meas .#1 Meas .#2 Meas .#3 Meas .#4 Meas .#5 Meas .#6 Meas .#7 Meas .#8 Meas #9 Meas .#10 Meas .#11 Statistical and Total Measurement Uncertainty: St. Dev. 1.10 10.53 0.65 St. Err. 10.55 0.27 0.33 Avg DV 52.83 49.67 147.98 Tot Unc