This document discusses different types of graphs used to represent data. It outlines eight main types of graphs: bar graphs, pie charts, tally charts, area graphs, pictographs, waterfall graphs, line graphs, and polar graphs. Each graph type is briefly described, including details about bar graphs having two axes (X and Y), pie charts showing proportional sectors, and waterfall charts representing cumulative positive or negative values. Pictographs use pictures to represent data, while line graphs connect data points with straight lines. The document provides a high-level overview of common graph types used for data visualization.

1. INDEX
What is data handling?
The types of graphs
Bar graph
The axis
Pie chart
Water fall graph
Line graph
Area graph
Pictograph
Tally chart
By Rayna Rocha VI J

2.  Data handling is the process of ensuring that research data is stored,
archived or disposed off in a safe and secure manner during and after
the conclusion of a research project. This includes the development of
policies and procedures to manage data handled electronically as
well as through non-electronic means .

3.  There are eight main graphs. Their names are
 Bar graphs
 Pie charts
 Tally charts
 Area graphs

4.  Pictographs
 Water fall graphs
 Line graphs
 Polar graphs

5.  This is a type of chart, which contains labelled horizontal or vertical
bars showing a piece of information and an axis. The numbers along
the side of bar graph compose the axis. This is also called as a
histogram; Bar Graph is useful when there is a numerical comparison.

6.  There are two types of axis present in a bar graph. The line which is
horizontal is known as the X Axis. The line which is vertical is known
as the Y Axis.

7.  A pie chart is divided into sectors, illustrating numerical proportion. In
a pie chart, the arc length of each sector, is proportional to the
quantity it represents.

8.  A waterfall chart is a form of data visualisation that helps in
understanding the cumulative effect of sequentially introduced positive
or negative values. The waterfall chart is also known as a flying bricks
chart or Mario chart due to the apparent suspension of columns (bricks)
in mid-air. Often in finance, it will be referred to as a bridge.

9.  A line chart or line graph is a type of chart which displays information
as a series of data points called 'markers' connected by straight line
segments. It is a basic type of chart common in many fields.

10.  An area chart or area graph displays graphically quantitive data. It is
based on the line chart. The area between axis and line are commonly
emphasized with colours, textures and hatchings. Commonly one
compares with an area chart two or more quantities.

11.  A picture that visually helps us to understand data is called a
pictograph. A pictograph represents data in the form of pictures,
objects or parts of objects.

12.  This chart is not used with numbers but instead of lines. We can make
five a time. Like this-