Chapter4 Statistik.ppt
15
In this lesson you will learn how to: construct a pie chart During Form 2, you have learnt how to represent data using Bar Chart, Line graph and pictogram . Did you still remember how its look like?
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Transcript of Chapter4 Statistik.ppt
In this lesson you will learn how to:
construct a pie chart
During Form 2, you have learnt how to represent data using Bar Chart, Line graph and pictogram . Did you still remember how its look like?
Types of Data PresentationTypes of Data Presentation
Can you name the this diagram?Bar ChartBar Chart
Can you name the this diagram?Line GraphLine Graph
Types of Data PresentationTypes of Data Presentation
PictogramPictogramCan you name the this diagram?
Types of Data PresentationTypes of Data Presentation
There are also other ways to There are also other ways to represent datarepresent data
• a representation of data using sectors in a circle.
• most suitable to illustrate and compare The overall values of different data categories.
• Pie charts can be construct using the data in percentages and numbers.
How to construct a Pie ChartHow to construct a Pie Chart in MS Excel in MS Excel
Video Video
‘‘ConstructingPieChart_usingMSExcel’ConstructingPieChart_usingMSExcel’
Steps to construct a pie chart Steps to construct a pie chart using compasses and protractorusing compasses and protractor
1) Calculate the angle of every sector to be
included in the pie chart
2) Draw a circle of a suitable size
3) Divide the area of the circle into
sectors according to their calculated angles
4) Label the pie chart and give it a suitable title
GradeGrade Number of studentsNumber of students
AA 2020
BB 4545
CC 7575
DD 4545
TotalTotal 200200
Example 1Example 1
Construct a pie chart using the given Construct a pie chart using the given numbersnumbers
The table shows the number of students with their grades.
GredGredNumber of Number of
studentsstudents
AA 2020
BB 5050
CC 7575
DD 5555
Angle of Angle of each each
Sector Sector
Construct a pie chart using the given Construct a pie chart using the given percentagespercentages
360200
20
200
36020
200
7200
360200
50
200
36050
200
18000
90
360200
75
200
36075
200
27000
360200
55
200
36055
200
19800
360
36
135 99
TotalTotal 200 200
CONSTRUCT A PIE CHARTS
135°99°
A
B
C
Pie chart shows number of students with their grades.
..
D
36°
GamesGames Percentages(%)Percentages(%)
BadmintonBadminton 2020
HockeyHockey 1515
FootballFootball 3535
Tennis Tennis 1010
VolleyballVolleyball 2020
TotalTotal 100100
Example 2Example 2
Construct a pie chart using the given Construct a pie chart using the given percentagespercentages
The table shows the percentage of various games preferred by students
GamesGamesPercentagesPercentages
(%)(%)
BadmintonBadminton 2020
HockeyHockey 1515
FootballFootball 3535
Tennis Tennis 1010
Angle of Angle of each Sector each Sector
Construct a pie chart using the given Construct a pie chart using the given percentagespercentages
360100
20
100
36020
100
7200
360100
15
100
36015
100
5400
54
360100
35
100
36035
100
12600
360100
10
100
36010
100
3600
360
72
126100
Total 100Total 100
CONSTRUCT A PIE CHARTS
120°
100°
badminton
Hockey
Football
Pie chart shows the percentages of various games preferred by students
Tennis
54°
72°
