# Statistics

Topics: Histogram, Chart, Arithmetic mean Pages: 1 (405 words) Published: March 6, 2013
Statistics is the study of the collection, organization, analysis, interpretation, and presentation of data.[1][2] It deals with all aspects of this, including the planning of data collection in terms of the design of surveys and experiments. In mathematics, a graph is a representation of a set of objects where some pairs of the objects are connected by links. The interconnected objects are represented by mathematical abstractions called vertices, and the links that connect some pairs of vertices are called edges.[1]Typically, a graph is depicted in diagrammatic form as a set of dots for the vertices, joined by lines or curves for the edges. Graphs are one of the objects of study in discrete mathematics. Line graph is a graph that uses line segments to connect data points and shows changes in data over time.  A bar graph displays data visually and is sometimes called a bar chart or a bar graph. Data is displayed either horizontally or vertically and allows viewers to compare items displayed. Data displayed will relate to things like amounts, characteristics, times and frequency etc. A bar graph displays information in a way that helps us to make generalizations and conclusions quickly and easily. histograph Line-chart based on a histogram, it is drawn by joining the mid-points of the blocks at their apexes with a straight line. The extreme points of the line are joined to the horizontal ('X') axis (where the mid-point of the respective next class would have been) to result into a polygon. Pictograph is a way of representing statistical data using symbolic figures to match the frequencies of different kinds of data. Mean, Median, Mode,

Mean, median, and mode are three kinds of "averages". There are many "averages" in statistics, but these are, I think, the three most common, and are certainly the three you are most likely to encounter in your pre-statistics courses, if the topic comes up at all. The "mean" is the "average" you're used to, where you add up all...

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