Once a graph has been drawn it can be analysed to look for patterns and trends. If the dependent variable increases as the independent variable increases, there is a positive correlation. If the ...

They were inspired by classic picture-drawing automatons, and made a 21st-century version to be used in museums or at events like trade shows. The operation of the Piktograph is very simple ...

Precision and repeatability can be seen easily from a table of results containing repeat measurement. If the repeat measurements are close together, the data is precise and repeatable. To ensure ...