Rob, Billy, Yulia and Devin are each trying to make a solution that requires 30 mL of stock to be added. Rob uses a 25 mL pipette and a 5 mL pipette; Billy uses a 5 mL pipette 6 times; Yulia uses a 50 mL burette; and Devin uses a 25 mL graduated cylinder. Assuming that the only error introduced was by the variance in the glassware, Determine the cumulative error for each person.
Pipette uncertainty:
5 mL: +/- 0.01 mL
25 mL: +/- 0.03 mL
Burette uncertainty:
50 mL: +/- 0.05 mL
Graduated Cylinder uncertainty:
25 mL: +/- 5%