The type of graph you use depends on the type of data ... Pictograms use pictures to represent data. To make sense, a pictogram must always have a key. In a pictogram it is important to make ...

Dyma wers yn cynrychioli data mewn pictogram. When you collect and record data, you can represent it in a diagram. To show the results you can use a bar chart, pie chart, line graph, pictogram ...