Ishan's Analytics

A pie chart (or a circle chart) is a circular statistical graphic based on percentage, which is divided into slices to illustrate numerical proportion. In a pie chart, the arc length of each slice (and consequently its central angle and area), is proportional to the quantity it represents. While it is named for its resemblance to a pie which has been sliced, there are variations on the way it can be presented. The earliest known pie chart is generally credited to William Playfair's Statistical Breviary of 1801.Pie charts are very widely used in the business world and the mass media. However, they have been criticized, and many experts recommend avoiding them, pointing out that research has shown it is difficult to compare different sections of a given pie chart, or to compare data across different pie charts. Pie charts can be replaced in most cases by other plots such as the bar chart, box plot, dot plot, etc.

Vilfredo Pareto (1848–1923) developed the bar graph when he sought to give economic decision-making a more "human" face by plotting data on graph paper, with salary on one axis and the number of people at different salary levels on the other. The results were striking: They showed dramatically the disparity between rich and poor in each era over the course of time.

Statistics is the discipline that concerns the collection, organization, analysis, interpretation and presentation of data. In today’s world of Automation the importance of Data has become prime, and but without statistics Data can’t tell us much about what it has in store. In applying statistics to a scientific, industrial, or social problem, it is conventional to begin with a statistical population or a statistical model to be studied. Populations can be diverse groups of people or objects such as "all people living in a country" or "every atom composing a crystal". Statistics deals with every aspect of data, including the planning of data collection in terms of the design of surveys and experiments. Statistics should be an integral part of education curriculum from the primary level. Statistics is the future.