Does there exist some measure of dispersion based on the deviations of all pairs of values in the data set which is better than standard deviation ?

Dhritikesh Chakrabarty @Dhritikesh_Chakrabarty

08 August 2018 0 5K Report

Standard deviation, which is the most widely used measure of dispersion of data, is not based on the deviations of all pairs of values in the data set.

A measure of dispersion based on the deviations of all pairs of values in the data set will logically be superior to standard deviation.

Does there exist some measure of dispersion based on the deviations of all pairs of values in the data set which is better than standard deviation ?

Badges
Science topic

More Dhritikesh Chakrabarty's questions See All

What is the true or the actual identity of statistics ?

Many academicians admit that statistics is a branch of political science. Some academicians want to say that statistics is a branch of economics while some academicians say that statistics is a...

10 November 2019 4,795 4 View

Do the observations on (X , Y) follow the same linear model which is followed by the variables X & Y ?

We have two variables X and Y following the linear model Y = a + bX where a & b are the parameters. We have collected the pairs of numerical observations...

10 November 2018 8,971 18 View

Is it possible to determine the actual values of the parameters, from a set of observations on (X , Y), following linear model ?

Suppose, we have the pairs of numerical observations namely (X1 , Y1) , (X2 , Y2) , (X3 , Y3) , ................... , (Xn , Yn) on the variables X and Y. Here the observations follow the...

10 November 2018 8,167 16 View

Is the existing evaluation process of Ph.D. thesis by the examiners is a vague one ?

One of my research students (Ph.D. research) had submitted his Ph.D. thesis for the award of Ph.D. degree. One of the two thesis examiners / evaluators assigned by the university had strongly...

09 October 2018 4,633 16 View

Does there exist test statistic for testing of the significance of difference between the kurtosis of the two samples ?

I have two independent random samples . The distribution of data in each of the two samples may not be normal (mesokurtic) . Moreover, the kurtosis may not be same in the two data sets of the two...

08 September 2018 2,890 8 View

Does there exist test statistic for testing of the significance of difference between the skewness of two samples ?

I have two independent random samples . The distribution of data in each of the two samples may not be symmetric. Moreover, the asymmetry may not be same in the two data sets of the two...

08 September 2018 6,138 7 View

Can the coefficient of correlation defined by Kearl Pearson be a proper measure of the degree of linear correlation between two variables ?

The coefficient of correlation r(X , Y) between two variables X and Y, due to Kearl Pearson defined by r(X , Y) = Covariance (X , Y)/{SD(X).SD(Y)} , measures the degree of linearity of...

08 September 2018 2,902 3 View

Do two variables not remain as variables but become constants if the correlation coefficient between them is zero ?

The regression equation of Y on X is of the form Y = a + b X where b is the regression coefficient coefficient of Y on X. Similarly, the regression equation of X on Y is of the...

07 August 2018 2,136 24 View

Is there necessity of framing of a definition of statistical equality (i.e. equality in statistical sense) ?

Suppose there are 5 samples having different means (sample means). Statistical testing of hypothesis may lead to the result that the 5 sample means are equal. It is clear that the 5 sample means...

07 August 2018 8,414 6 View

"Sample survey is considered to be better than complete census". Is it not a contradiction ?

The law of large number (as well as the theory of large sampling) implies that as the number of observations increases, the value of the estimator of a parameter based on the observations becomes...

07 August 2018 549 0 View

Can we classify HV and LV lines based on line length?

I have dataset which shows the length of power lines. I need to classify the lines based on the line length. Is there a rule to classify the High voltage (HV) and low voltage (LV) lines based on...

03 March 2021 4,116 4 View

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 1,401 3 View

What analysis to choose with a large neste dataset and clearly skewed or kurtotic distributions?

Hello! I have a dataset of n=3000 nested within 8 countries with approximately 200 or 400 responses in each country. I originally planned to perform multilevel modelling with 4 dependent variables...

02 March 2021 6,865 1 View

Do you know any MR image dataset?

I would like to research on MR images (0.5T and 3T). Can you please suggest some websites that I can download dataset including both 0.5T and 3T MR images? Thank you.

02 March 2021 7,735 3 View

Can NFL theorem be valid in infinite search space in ML?

NFL theorem is valid for algorithms training in fixed training set. However, the general characteristic of algorithms in expanded or open dataset has not been proved yet. Could you show your...

01 March 2021 1,189 3 View

What is involved in morphological changes of SEM images of a substance?

In the sem analysis of CaCO3 nanaoparticles, the morphology images showed spherical shaped particles but the proposed morphology for these type of nanoparticles is trigonal. I prepared the...

01 March 2021 1,960 4 View

Does anyone have kinetic and kinematic dataset for gait classification?

I want to differentiate between normal and abnormal movement. For this reason, I am looking forward to this type of dataset.

01 March 2021 9,485 1 View

Where can I find public datasets with Covid-19 patient information?

Hi, I'm looking for public datasets that have CT, X-ray information, or medical records for patients with Covid-19. Does anyone have suggestions?

28 February 2021 4,760 3 View

I need dataset for recommandation system?

Hi every body I need to collect datasets from different source to work on recommendation system algorithms, could you advise me how collect data?

27 February 2021 7,063 7 View

How to evaluate unsupervised clustering metrics when some elements do not have a cluster label in the result?

I run algorithms like HDBSCAN and MeanShift, and compare them with K-means and GaussianMixture. The first two algorithms do not return cluster labels for some elements in the dataset. My question...

27 February 2021 428 3 View