Chapter 6 Statistics

7/25/2019 Chapter 6 Statistics

1/15

Economics

MedicineSports

Social Sciences


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Can you name some type of these chart?


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In this chapter, there are three graphicalrepresentations of data


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Histogram


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Frequency Poligon


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1.5 2.5 3.5 4.5 5.5

5

10

15

20

25

0.5Weight of the cakes (kg)

x

CumulativeFrequency

yOgie


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Learning Objectives :Learning Objectives :

6! "n#erstan# the conce$t of6! "n#erstan# the conce$t of

class intervalclass interval


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Class %ntervalClass %nterval& large number of& large number of

observations or #ata may beobservations or #ata may be

organise# into a suitableorganise# into a suitablenumber of grou$s or classesnumber of grou$s or classes

before they can be analyse#before they can be analyse#

an# inter$rete#an# inter$rete#


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'able ! : ata of the marks of the stu#ents of the Form &

6+ ,- ./ 6! 0+ 0! 0. 6. ,- ,.

-6 -1 0. 6. 6- 6! 6! ,+ 60 ,-

-6 .+ .1 .+ 00 ,- ,- ,. ,. -6

2arks -!36+ 6!3,+ ,!3.+ .!30+ 0!3!++

Frequenc

y

ClassInteral


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Instructions:

Complete the class intervals base on

the table below.

Volume of

petrol (litre)10-14

Worksheet 1Worksheet 1

!"#!$

%"#%$

%%' (('


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Instructions:


the table below.

Height of

student (cm)


!)!)$

!*!*$

!+!+$

!$!$$

!"!"$


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Instructions:


the table below.

Volume of

diameters of

circular discs (cm)

3.4-3.6


(+#($

'(#'"''%

')#'*


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Class limitClass limitFor class interval such as 1+3For class interval such as 1+3

14 the en# numbers 1+ an# 114 the en# numbers 1+ an# 1

are calle#are calle# class limitclass limit

'he smaller number4 1+ is the'he smaller number4 1+ is the

lo5er limitlo5er limit an# the largeran# the largernumber4 1 is thenumber4 1 is the u$$er limitu$$er limit


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uestionuestionCan you state the lo5er an#Can you state the lo5er an#

u$$er limit of -307u$$er limit of -307

Lo5er limit 8-Lo5er limit 8-

"$$er limit 8 0"$$er limit 8 0


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9rou$ &ctivity9rou$ &ctivity

Instructions:

Complete the table below.

Volume of

diameters

of circular

discs (cm)

1316 1,310 +3/ 13-

-pper.imit

.o/er

.imit

Chapter 6 Statistics

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