Statistics Assignment Help With Co-efficient Of Dispersion

Co-efficient of dispersion measure the variability of the two series which differ widely in their averages. The Co-efficient of dispersion denoted as C.D. the different measure of dispersion is as follows:

C.D based on range is co efficient of dispersion

C.D based on quartile deviation is dispersion measure

C.D based on mean deviation is mean deviation

Where v is the average from which the mean deviation is calculated
Statistics Assignment Help Order Now C.D based on standard deviation is standard deviation

1.2.6 Co – efficient of variation:

The 100 times of the co – efficient of dispersion based upon standard deviation is called the co – efficient of variation (C.V.).

C.V. = co efficient of variation

1.2.7 Skewness:

The skewness is about the shape of the bell shaped curve which is drawn with the given observations. Skewness is denoted as Sk. the measures of skewness are

skewness

measures of skewness

Where M is the mean, Md is the median and Mo is the mode.

1.2.7 Co – efficient of Skewness:

The relative measure called the co efficient of skewness.

Karl Pearson’s co efficient of skewness is

co efficient of skewness

Where M is the mean, Mo is the mode and σ is the standard deviation of the distribution.

If the mode is ill – defined, then using the relation

skewness2

The skewness is positive if M> Mo or M> Md

The skewness is negative if M< Mo or M< Md

1.2.8 Kurtosis:

Kurtosis is defined as the ‘Convexity of curve’ by Professor Karl Pearson. It explains about the peakedness of the curve. It is measured by the co – efficient β2 or its derivation γ2 given by,

kurtosis

mesokurtic curve

The normal curve or the Mesokurtic curve have β2 = 3 that is γ2 = 0.

The Platykurtic curve has β2 < 3 that is γ2 < 0.

The Leptokurtic curve has β2 > 3 that is γ2 > 0.

Email Based Homework Help in Co-efficient Of Dispersion

To Schedule a Co-efficient Of Dispersion tutoring session click here
To submit Co-efficient Of Dispersion assignment click here.

Following are some of the topics in Descriptive Statistics in which we provide help:

Online Statistics Help | Statistics Math Help | Statistics probability help | Statistics help | College statistics help | Business statistics help| Elementary statistics help | Probability and statistics help | Statistics tutor | Statistic Homework help | Excel help | Mathematica help | Matlab help | MegaStats help |Minitab help | PHStat2 help | POM/QM help | R code and S-Plus help | SAS help | SPSS Help | Stata help | TDISK help | Tree Plan help | Online Tutoring