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