In an experiment, evaluate the validity of the steps leading up to the conclusion for it to be valid. Random and systematic errors can contribute to the uncertainty of a measurement.

Designing a less perfect solution We used FlashyScience to teach students how to use micrometer screws and for the main investigation we used the University of Colorado Boulder’s PhET simulations and ...

However, the gap between the calculated and measured warming is not due to systematic errors of the models, as the skeptics had suspected, but because there are always random fluctuations in Earth ...

This article discusses simple processes for addressing the random and systematic errors caused by the dead time in a gammaray spectrometer.