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Range and Quartile Deviation

This document contains 6 questions asking to calculate the quartile deviation and coefficient of quartile deviation from data sets provided. The data sets include numbers, ages and members, heights and numbers of students, wages and numbers of workers, and class intervals and frequencies.

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palash khanna
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522 views3 pages

Range and Quartile Deviation

This document contains 6 questions asking to calculate the quartile deviation and coefficient of quartile deviation from data sets provided. The data sets include numbers, ages and members, heights and numbers of students, wages and numbers of workers, and class intervals and frequencies.

Uploaded by

palash khanna
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOCX, PDF, TXT or read online on Scribd
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QUESTION 1:-Estimate quartile deviation and the

coefficient of quartile deviation of the following data:


8, 9, 11, 12, 13, 17, 20, 21, 23, 25, 27

QUESTION 2;- Find out quartile deviation and coefficient


of quartile deviation of the following series:
28, 18, 20, 24, 30, 15, 47, 27
QUESTION 3

Find out quartile deviation and the coefficient of quartile


deviation of the following data:
Age 20 30 40 50 60 70 80
Members 3 61 132 153 140 51 3

Cumulative
Numbers
Age Frequency
(f)
(c.f.)
3
3 + 61 =
64
20 3 64 + 132
30 61 = 196
40 132 196 + 153
50 153 = 349
60 140 349 + 140
70 51 = 489
80 3 489 + 51
= 540
540 + 3 =
543
Σf=N=543Σf=N=543
Estimate quartile deviation and the coefficient of quartile
deviation of the following series:
Height
58 59 60 61 62 63 64 65 66
(inches)
Number
of 15 20 32 35 33 22 20 10 8
Students
Question :

Given the following data, find out quartile deviation and


the coefficient of quartile deviation:
Wages
0−5 5−10 10−15 15−20 20−25 25−30
(₹)
Number
of 4 6 3 8 12 7
Workers

Cumulative
Wage No. of worker (f) Frequency
(c.f.)
0−5
4
5−
4 + 6 = 10
10
4 10 + 3 =
10 −
6 13
15
3 13 + 8
15 −
8 = 21
20
12 21 + 12 =
20
7 33
−25
33 + 7 =
25 −
40
30
Σf=N=40Σf=N=40
Question :

Find out quartile deviation and coefficient of quartile


deviation from the following data:
Class 0−1 10−2 20−3 30−4 40−5 50−6
Interval 0 0 0 0 0 0
Frequenc
4 8 5 4 9 10
y

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