The asymmetry coefficient , skewness and kurtosis , how to calculate the coefficient of asymmetry coefficient calculation options

asymmetry factor - is not easy.However, this opinion beginners.Upon closer examination, this term is quite easy to digest.This is perhaps the most important concept in all probability theory.It skewness and kurtosis promote computing and identification of random variables.These values ​​are calculated using formulas.To find out what skewness, you must possess the following information: the date and value of the central value of the standard deviation.Furthermore, it is necessary that the X, which is denoted coefficient itself, was clearly less than infinity.Otherwise, all the calculations are meaningless.X it is not finite.In order to find the ideal solution and find out what is the asymmetry coefficient in a particular case, you will need to use a few formulas.It is desirable that the results you get, was close to zero.

Why is it important to calculate the index of asymmetry?It is necessary to collect statistical data and forecasting results.In all areas of statistics plays an important role.The asymmetry coefficient in the case of preparation helps in calculating the behavior of the building after construction, the possibility of its destruction, and thus helps to take measures to prevent similar situations.And this is not an isolated case in which a mathematical operation, this makes sense: as calculated pipe connection flange before welding, identifying any changes relating to construction ... Agree, it is easier to calculate the coefficient of asymmetry and prevent possible error, rather than build a building or weld detail,then remodel.This is not only convenient but also cheaper: rework, tend to spend a lot of money.

In conventional formulas asymmetry coefficient is referred to as As.As a rule, are predicted and introduced such random deviations which are not really.This is done to check how to behave in the whole structural system as a whole, if there is such, even the minimum error.It is believed that the error in any case, is the place to be.Only she can either spoil everything or remain small and do not disturb the structure.Predict the error and helps calculate the coefficients of skewness and kurtosis.

There are plenty of similar statistical methods, which are also characterized by their utility, but the only factor asimetrii facilitates tracking of the near future and the likelihood, what they can not provide other ways.Among them: the order statistic, the rank statistics, etc.

By the way, in order to calculate this ratio, it is possible to collect any information that has been grouped or even isolated, is not folded together the numbers.

These calculations are most often used in the natural sciences, as well as banking business, are constantly in any building settlements, because their rates are extremely accurate and believable.Using these calculations will protect against subsequent, possibly fatal mistakes.

So bother to find a good statistician for the company, not to "burn" in any case.He will be able to predict the situation with the affairs of your company as well as any psychic, and in many respects - even better.After all numbers have an advantage over the words, they are always accurate.By the way, you can figure out the formulas and yourself, if you are a little familiar with higher mathematics.Simply open a good tutorial on statistics and consider paragraphs telling about the asymmetry coefficient.Good luck!