STATISTICS Lecture Notes - Pie Chart, Bar Chart, Pictogram
Document Summary
Diagrammatic representation of data uses and limitations simple, multiple, Component and percentage bar diagrams pie chart. Diagrams are various geometrical shape such as bars, circles etc. Diagrams are based on scale but are not confined to points or lines. They are more attractive and easier to understand than graphs. The important diagrams are: simple bar diagram, multiple bar diagram, component bar diagram, percentage bar diagram. 1: pie chart, pictogram, statistical maps or cartograms. In all the diagrams and graphs, the groups or classes are represented on the x-axis and the volumes or frequencies are represented in the y-axis. If the classification is based on attributes and if the attributes are to be compared with respect to a single character we use simple bar diagram. Example: the area under different crops in a state, the food grain production of different years, the yield performance of different varieties of a crop, the effect of different treatments etc.
