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Basics:

Creating Charts

Working withSpreadsheets

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What is a Chart?A chart is a graphical

representation of information. Information presented intabular form.

Diagram, Picture, ImageRepresentation of numbers

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Why Charts?

Eas for interpretation of largeamounts of numbers

!ompact a lot of information insmall area"a#e room for eas inference$

conclusion!an allo% for predictions

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Charting is not straightforward...

Many types of charts thatare

used for dierent purposes

'no% %hat data ou ha(e'no% %hat tpes of charts

e)ist!hoose appropriate chart

for data

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Common types of Charts

+ine raphsPie !harts-ar raphs

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Line Graphs

A line graph is a %a tosummarie ho% di/erent

pieces of information arerelated and ho% the (ardepending on one another.

0he numbers along a side ofthe line graph are called the

scale

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cont Line Graphs

When you want to display atrend

Charts made up of linesEach line represent a particularcategory

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cont Line Graphs

Rose Joseph Richard

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IEDS Computer iterac! "ar#s

$ss i%&m e&t

'est

IEDS Computer Literacy Marks

Name Assignment Test

Rose 79 87

Joseph 68 77

Richard 58 68

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Pie Charts

A pie chart is a circle graphdi(ided into pieces

Each displaing the sie of

some related piece ofinformation.

Pie charts are used to displathe sies of parts that ma#eup some %hole.

4

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cont Pie Charts

When you want todisplay percentages

Circular ChartDivided into segmentsEach segments represent partof a whole in percentage

Entire circler presents whole15

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cont Pie Charts

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IEDS $ssi%&me&t "ar#s

Rose

Joseph

Richard

IEDS Computer Literacy Marks

Name Assignment Test

Rose 79 87

Joseph 68 77

Richard 58 68

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Bar Graphs

-ar graphs consist of an a)isand a series of labelledhoriontal or (ertical bars thatsho% di/erent (alues for eachbar.

0he numbers along a side ofthe bar graph are called thescale.

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cont Bar Graphs

When you want tocompare quantities of

dierent categoriesChart made up of bars

Data grouped intocategoriesFrequencies represented on

Y-axis mostl

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cont Bar Graphs

$ssi%&me&t 'est0

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30

40

50

60

70

80

90

100

IEDS Computer iterac! "ar#s

Rose

Joseph

Richard

IEDS Computer Literacy Marks

Name Assignment Test

Rose 79 87

Joseph 68 77

Richard 58 68

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Eercise

0hin# of suitable data for Pi6chart and create one

0hin# of suitable data for-ar6 chart and create one

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!ore "nformation

7isit these sites on !hartsand raphs on the Internethttp8$$%%%.strategiccomm.com$usecharts.html69sing chartshttp8$$%%%.mathleague.com$help$data$data.htm6 9sing !hartshttp8$$%%%.cas.lancs.ac.u#$glossar:(1.1$presda

ta.html6 lossar of statistical termshttp8$$lilt.ilstu.edu$gm#lass$pos13$datadispla$goodcharts.htm6 !onstructing good charts

http://www.strategiccomm.com/usecharts.htmlhttp://www.strategiccomm.com/usecharts.htmlhttp://www.mathleague.com/help/data/data.htmhttp://www.mathleague.com/help/data/data.htmhttp://www.cas.lancs.ac.uk/glossary_v1.1/presdata.htmlhttp://www.cas.lancs.ac.uk/glossary_v1.1/presdata.htmlhttp://lilt.ilstu.edu/gmklass/pos138/datadisplay/goodcharts.htmhttp://lilt.ilstu.edu/gmklass/pos138/datadisplay/goodcharts.htmhttp://lilt.ilstu.edu/gmklass/pos138/datadisplay/goodcharts.htmhttp://lilt.ilstu.edu/gmklass/pos138/datadisplay/goodcharts.htmhttp://www.cas.lancs.ac.uk/glossary_v1.1/presdata.htmlhttp://www.cas.lancs.ac.uk/glossary_v1.1/presdata.htmlhttp://www.mathleague.com/help/data/data.htmhttp://www.mathleague.com/help/data/data.htmhttp://www.strategiccomm.com/usecharts.htmlhttp://www.strategiccomm.com/usecharts.html