PPT - Measures of Skewness B Com Notes | EduRev

Business Mathematics and Statistics

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B Com : PPT - Measures of Skewness B Com Notes | EduRev

 Page 1


MEASURES OF  SKEWNESS AND 
INTERPRETATION
PGDM@IAMEE                                                                                        www.iamee.in
Page 2


MEASURES OF  SKEWNESS AND 
INTERPRETATION
PGDM@IAMEE                                                                                        www.iamee.in
OVERVIEW
1. What is meant by Skewness.
2. What are the different types of Skewness 
Distributions.
3. Skewness Distributions in graphical 
representation.
4. Calculation of Skewness Coefficient in 
different (two types) methods.
PGDM@IAMEE                                                                                        www.iamee.in
Page 3


MEASURES OF  SKEWNESS AND 
INTERPRETATION
PGDM@IAMEE                                                                                        www.iamee.in
OVERVIEW
1. What is meant by Skewness.
2. What are the different types of Skewness 
Distributions.
3. Skewness Distributions in graphical 
representation.
4. Calculation of Skewness Coefficient in 
different (two types) methods.
PGDM@IAMEE                                                                                        www.iamee.in
Measures of Skewness
? The statistical technique to indicate the 
direction and extent of skewness in the 
distribution of numerical values in the data 
set.
? A frequency distribution of the set of values 
that is not Symmetrical(normal) is called 
asymmetrical or skewed.
PGDM@IAMEE                                                                                        www.iamee.in
Page 4


MEASURES OF  SKEWNESS AND 
INTERPRETATION
PGDM@IAMEE                                                                                        www.iamee.in
OVERVIEW
1. What is meant by Skewness.
2. What are the different types of Skewness 
Distributions.
3. Skewness Distributions in graphical 
representation.
4. Calculation of Skewness Coefficient in 
different (two types) methods.
PGDM@IAMEE                                                                                        www.iamee.in
Measures of Skewness
? The statistical technique to indicate the 
direction and extent of skewness in the 
distribution of numerical values in the data 
set.
? A frequency distribution of the set of values 
that is not Symmetrical(normal) is called 
asymmetrical or skewed.
PGDM@IAMEE                                                                                        www.iamee.in
Skewed distributions
There are three types:
? Symmetrical distribution
A.M = Median = Mode
? Positively skewed distribution
A.M > Median > Mode
? Negatively skewed distribution.
A.M < Median < Mode
PGDM@IAMEE                                                                                        www.iamee.in
Page 5


MEASURES OF  SKEWNESS AND 
INTERPRETATION
PGDM@IAMEE                                                                                        www.iamee.in
OVERVIEW
1. What is meant by Skewness.
2. What are the different types of Skewness 
Distributions.
3. Skewness Distributions in graphical 
representation.
4. Calculation of Skewness Coefficient in 
different (two types) methods.
PGDM@IAMEE                                                                                        www.iamee.in
Measures of Skewness
? The statistical technique to indicate the 
direction and extent of skewness in the 
distribution of numerical values in the data 
set.
? A frequency distribution of the set of values 
that is not Symmetrical(normal) is called 
asymmetrical or skewed.
PGDM@IAMEE                                                                                        www.iamee.in
Skewed distributions
There are three types:
? Symmetrical distribution
A.M = Median = Mode
? Positively skewed distribution
A.M > Median > Mode
? Negatively skewed distribution.
A.M < Median < Mode
PGDM@IAMEE                                                                                        www.iamee.in
Skewed distribution Curves
PGDM@IAMEE                                                                                        www.iamee.in
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