What are the meaning of bar graphs line graphs pie graphs?

Answer 1

aaa Bar Graph - A graph consisting of parallel, usually vertical bars or rectangles with lengths proportional to the frequency with which specified quantities occur in a set of data. Also called bar chart. A bar chart or bar graph is a chart with rectangular bars with lengths proportional to the values that they represent. Bar charts are used for comparing two or more values. The bars can be horizontally or vertically oriented. Sometimes a stretched graphic is used instead of a solid bar.

Pie Graphs? or Pie Charts - A pie chart (or a circle graph) is a circular chart divided into sectors, illustrating relative magnitudes or frequences or percents. In a pie chart, the arc length of each sector (and consequently its central angle and area), is proportional to the quantity it represents. Together, the sectors create a full disk. It is named for its resemblance to a pie which has been sliced.

Line Graphs - The line graph is also sometimes called the edge graph, the adjoint graph, the interchange graph, or the derived graph of X A line chart or line graphis a type of graph created by connecting a series of data points together with a line. A line chart is a basic type of chart common in many fields. It is an extension of a scatter graph, and is created by connecting a series of points that represent individual measurements with line segments. A line chart is often used to visualize a trend in data over intervals of time, thus the line is often drawn chronologically

(mathematics) A graph in which successive points representing the value of a variable at selected values of the independent variable are connected by straight lines.

Source Wikipedia