Why is one method more precise than the other? Method B is less precise because the absolute uncertainty in the 1‑mL pipet is 0.006 mL,0.006 mL, which is smaller than the uncertainties of the other glassware. Method B is more precise because the absolute uncertainty in the 1‑mL pipet is 0.006 mL,0.006 mL, which is smaller than the uncertainties of the other glassware. Method B is less precise because the percent relative uncertainty in the 1‑mL pipet is 0.6%,0.6%, which is 33 times larger than the uncertainties of the other glassware. Method B is more precise because the percent relative uncertainty in the 1‑mL pipet is 0.6%,0.6%, which is 33 times larger than the uncertainties of the other glassware.