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Pareto chart. A Pareto chart is a type of chart that contains both bars and a line graph, where individual values are represented in descending order by bars, and the cumulative total is represented by the line. The chart is named for the Pareto principle, which, in turn, derives its name from Vilfredo Pareto, a noted Italian economist.
The score of 20 for a K is the highest known point value for any letter in any Scrabble score distribution worldwide. The fourth distribution, which uses U instead of V, and includes Y, is as follows: [ 34 ] 2 blank tiles (scoring 0 points) 1 point: E ×10, A ×9, I ×9, S ×9, T ×9, U ×9. 2 points: M ×6, N ×6, O ×6, R ×6.
William Playfair is usually credited with inventing the area charts as well as the line, bar, and pie charts.His book The Commercial and Political Atlas, published in 1786, contained a number of time-series graphs, including Interest of the National Debt from the Revolution and Chart of all the Imports and Exports to and from England from the Year 1700 to 1782 that are often described as the ...
A chart (sometimes known as a graph) is a graphical representation for data visualization, in which "the data is represented by symbols, such as bars in a bar chart, lines in a line chart, or slices in a pie chart ". [ 1] A chart can represent tabular numeric data, functions or some kinds of quality structure and provides different info.
Snellen chart. Purpose. Snellen chart is used to estimate visual acuity (last three rows are 20/15, 20/13 and 20/10) A Snellen chart is an eye chart that can be used to measure visual acuity. Snellen charts are named after the Dutch ophthalmologist Herman Snellen who developed the chart in 1862 as a measurement tool for the acuity formula ...
Square charts, also called waffle charts, are a form of pie charts that use squares instead of circles to represent percentages. Similar to basic circular pie charts, square pie charts take each percentage out of a total 100%. They are often 10 by 10 grids, where each cell represents 1%.
The percentage shares of China, India and rest of South Asia of the world population have remained at similar levels for the last few thousand years of recorded history. [1] [2] The world's literacy rate has increased dramatically in the last 40 years, from 66.7% in 1979 to 86.3% today. [3] Lower literacy levels are mostly attributable to poverty.
The top left graph is linear in the X and Y axes, and the Y-axis ranges from 0 to 10. A base-10 log scale is used for the Y axis of the bottom left graph, and the Y axis ranges from 0.1 to 1,000. The top right graph uses a log-10 scale for just the X axis, and the bottom right graph uses a log-10 scale for both the X axis and the Y axis.