Data close dataInformation collected in the form of numbers. is very useful. It can help us to answer questions, make decisions and solve problems. Before we can use data it needs to be collected. A ...

For most of us, the word graph brings back memories (not always pleasant) of pencils and rulers and quadrille ruled paper, though a more recent generation may think instead of pie and bar charts ...

From the bar graph above, the main points are: Each bar has its own label on the horizontal axis There is a scale on the vertical axis The bars are of equal width ...