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How do you calculate a variance covariance matrix explain with an example?
Wiki User
∙ 11y ago
variance - covariance - how to calculate and its uses
Wiki User
∙ 11y ago
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How does analysis of variance work?
Explain DOE interms of ANOVA
Can you explain how you calculate it?
Math.
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What is the variance of a inverse gamma distribution with alpha equals 2?
When alpha is 2 or less than 2 the variance of the inverse gamma doesn't exist. That is why when the variance is defined for the inverse gamma it always says "for α > 2". It is also the case that when alpha is 1 or less the mean of the inverse gamma doesn't exist. In order to really undertand what it means to say the variance doesn't exist (or the mean doesn't exist) you need to understand the mathematical definition of the variance (and of the mean). I don't know how to add the necessary symbols to clearly explain this. However, just briefly, mathematically both the mean and variance of the gamma density are definite integrals over the support of the density, which is 0 to infinity. In general, sometimes a definity integral over an infinite range (negative and/or positive) exists and sometimes it doesn't. In the case of the definite integral for the variance on the inverse gamma, when alpha less than or equal to 2, this integral doesn't exist.
How do you calculate a variance-covariance matrix explain with an example?
Here's a link to a website that has an example http://www.itl.nist.gov/div898/handbook/pmc/section5/pmc541.htm and another example for understanding covariance and variance http://www.visualstatistics.net/Visual%20Statistics%20Multimedia/covariance.htm
How does analysis of variance work?
Explain DOE interms of ANOVA
Can you explain how you calculate it?
Math.
Budgetary control system?
Budgetary Control concerns itself with the total costs for each department. Each variance is the responsibility of the official who is in charge of the department in which it arises. This official must then explain the cause of the variance and take to prevent its recurrence.
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How can you find unit variance?
ok this question is qute simple to explain....just look at your keyboard and look at between the letters y and i... now u found the answer :)
Can you explain with an example?
yes
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