COLUMNGRAPhCOLUMNGRAPh Same width We all have the same width By Zani Alam By Zani Alam.
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Transcript of COLUMNGRAPhCOLUMNGRAPh Same width We all have the same width By Zani Alam By Zani Alam.
COLUMN
GRAPh
Same width
We all have the same width
By Zani Alam
Survey
A way of collecting information
Helps to find the views of the whole community or group
Surveys are a primary source of information –provide link to the vocab page.
What is a survey?
Uses questions
Survey
Use of surveys Real world application
Surveys can be used to find out attitudes of people about various issues
To measure client satisfaction
• You need a quick and efficient way of getting information.
• You need to reach a large number of people.
• You need statistically valid information about a large number of people.
• The information you need isn't readily available through other means.
When should you conduct a survey?
How to conduct a survey
5- Graph your results
4- Choose a suitable graph
3- Record your results in a table
2- Ask people your question
1- Think of a question
How to conduct a
survey
,,,.
Type of sport
Basketball
Volleyball Soccer
Netball
Number of students
7 5 9 2
Types of
graphs
Line graph
s Sector
graphs
Picture
graphsBar
graphs
Step graph
s
Column
graphs
DIFFERENT TYPES OF GRAPHS
Column graph Column graphs have a series of vertical blocks. Column graphs can be distinguished from histograms because the blocks always have gaps between them while histograms have no gaps.Use of column graphsA column graph is used to show relationships between groups. The two items being compared do not need to affect each other. It is a fast way to show big differences. Column graphs are an excellent way to show results that are one time, that aren't continuous - especially samplings such as surveys.
How do to construct a column graphColumn graphs are drawn with parallel columns placed vertically. The width of each bar and the spacing between the bars are kept the same to avoid giving a misleading representation. The columns or bars can be used to show what is happening with one thing or they can be divided into sections to represent several parts. The column can be drawn spaced evenly or apart or together in groups.1- Always place numbers on the vertical axis. Non-numerical groups are on the horizontal axis.2- Draw two axes: one vertical and one horizontal. Make sure you leave room at the edge of the page for your labels.3- Columns should be of the same width and should not touch at all.4- Arrange categories from smallest to largest if appropriate.5- Label each axis.6- The scale should go up evenly and cover the largest and smallest values.7- Include scientific units where appropriate.8- Include a title to explain what the graph is about. Your title should start with: Graph of……..
Column graph
A column graph is used to show
relationships between groups.
Column graphs are an excellent way to show
results that aren't continuous - especially
samplings such as surveys.
A column graph has two lines or axes.
One is the horizontal axis which goes from side
to side.
The other is the vertical axis which goes up and
down.
Summary
Things you should follow when drawing a column graph
use graph paper
Draw in the two axes with a ruler
use a pencil
Column graphs have a series of vertical blocks.
Columns should be of the same width and should not touch at all.
Non-numerical groups are on the horizontal axis.
Always place numbers on the line vertical axis.
Leave 0.5 cm gap at the start
Sample column graph
Horizontal axis
Graph of the number of sports played by boys
Vertical axis
The scale is going up by 5.
The spacing between the bars are kept the same.
Title
Width of the bar is the same
This table shows the favourite sport played by year 7B.
Types of sport
Basketball Volleyball Soccer Netball
Number of pupils
7 5 9 2
Draw a suitable graph for your data.
PDHP (tables and graphs)
Example
Step 1: Draw the axes
Step 2: Always place numbers on the vertical axis. Non-numerical group on the horizontal axis.
Num
ber o
f stu
dent
s
Step 3: Label them
Step 4: Setting up the scales. Count how may squares represent 1 on vertical axis.
On the horizontal axis, Leave 0.5 for the start .columns should be of the same width (1cm)..
Step 5: Putting up the values and drawing the columns
Step 6: Add a title0
Graph of the types of sport played by 8B
Title
Types of sport
1 cm
Basketball
Volleyb
allSo
ccer
Netball
Create a Graph Activity
Create a Graph
Activities1- Create a graph online (Do it tomorrow again)2- Station activities3- Design a gameCheck with P
Primary source of information: that is, you directly ask someone for a response to a question, rather than using any secondary sources like written records.Survey: A way of collecting information Column graphConduct:
Vocab page
Evaluation
and
Feedback from each student