Relationships?

What is the relationship between the scale divisions marked on the graduated cylinders and the estimated uncertainty in volume measurements?





Does percent error measure accuracy or precision? Explain.Relationships?
It depends on the graduated cylinder you are using to measure it with. Say you want to measure 10 mL of liquid. If you use a 10 mL graduate that has divisions every 0.1 mL. you can measure this to an estimated 0.01 mL (or in reality 0.05 or so mL). This same volume measured with a 50 mL graduated cylinder that has divisions every 1 mL, you can measure to an estimated 0.1 mL (or in reality 0.5 mL).





Since percent error involves the actual value, it measures how close you are to the actual value or accuracy. Precision is more a measure of repeatability.