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Business Statistics, 3rd Edition
book

Business Statistics, 3rd Edition

by Naval Bajpai
April 2024
Intermediate to advanced content levelIntermediate to advanced
921 pages
37h 16m
English
Pearson India
Content preview from Business Statistics, 3rd Edition
Chapter 4
PB
Measures of Dispersion
145
4. 6 Standard deviation = 9 Quartile deviation = 7.5 Mean absolute deviation, that is, 6s = 9
QD = 7.5 MAD
5. Standard deviation =
5
4
Mean absolute deviation or
3
2
Quartile deviation, that is,
SD MAD=
5
4
or
3
2
QD
6. Range = 6 Standard deviation
R = 6s.
4.7 CHEBYSHEV’S THEOREM
Empirical rule applies only to normally distributed data. It has a wide range of application, but in
cases where data distribution is not normal or where the shape of the distribution is not known, its
application is restricted. Chebyshev’s theorem provides an answer to this problem. It was devel-
oped by Russian mathematician P. L. Chebyshev ...
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Publisher Resources

ISBN: 9789390168996