In 1973, the statistician Francis Anscombe devised a fascinating demonstration showing why data should always be plotted before it is analyzed. The demonstration consisted of four data sets that ...

Microsoft Excel provides you some SmartArt graphics to add different types of diagrams to your worksheet, such as hierarchy diagram, pyramid, relationship, matrix, cycle, etc. It also provides you ...

For example, nerves and muscles do different things, so the cells have different structures. There are more than 200 types of cancer and we can classify cancers according to where they start in the ...