variance - covariance - how to calculate and its uses
The covariance between two variables is simply the average product of the values of two variables that have been expressed as deviations from their respective means. ------------------------------------------------------------------------------------------------- A worked example may be referenced at: http://math.info/Statistics/Covariance
One can find information on the covariance matrix on the Wikipedia website where there is much information about the mathematics involved. One can also find information on Mathworks.
look in a maths dictionary
Maybe I'm not providing a full information. But if you're asking about importance of covariance in trading, then before investing you should assess if your stocks are codependent. All investors try to diversify a portfolio and minimize risks. and covariance can show if two stocks are exposed to the same risk. Now it's easily calculated, there're different services. Actually, for better understanding just read Investopedia really.
variance - covariance - how to calculate and its uses
merits of this is it gives us the knowledge about two variables, two products, & difference between them.
The merits of the sampling methods takes the right products to the right customers. The demerit of this pricing method is that there are some goods which can't be sold therefore leading to losses.
Covariance - 2011 was released on: USA: 20 September 2011
) Distinguish clearly between analysis of variance and analysis of covariance.
what are the merits and demerits of data communication
[N*(N-1)]/2 N=1700 (1700*1699)/2 = 1,444,150 Covariance
The covariance between two variables is simply the average product of the values of two variables that have been expressed as deviations from their respective means. ------------------------------------------------------------------------------------------------- A worked example may be referenced at: http://math.info/Statistics/Covariance
A mix of linear regression and analysis of variance. analysis of covariance is responsible for intergroup variance when analysis of variance is performed.
Covariance: An Overview. Variance refers to the spread of a data set around its mean value, while a covariance refers to the measure of the directional relationship between two random variables.
The cast of Covariance - 2011 includes: David Razowsky as Russell Gains Dawn Westlake as Genevieve Pace
See related link.