Accuracy and Precision of Various Lab Glassware

Reported Weights of 100 mL of Water

For 4054 trials weighing 100 mL of water in a 250-mL beaker,
mean weight = 95.10 g, std. dev. = 4.86, and mean dev. = 3.78 g

For 3941 trials weighing 100 mL of water in a 100-mL graduated cylinder,
mean weight = 98.65 g, std. dev. = 2.47, and mean dev. = 1.55 g

For 3971 trials weighing 100 mL of water in a 100-mL volumetric flask,
mean weight = 99.49 g, std. dev. = 1.83, and mean dev. = 0.71 g