Archetype Definition: a common character, image, symbol, or situation that occurs in literature and in life, and considered to be universal across most cultures. Archetype examples are found in the world around us every day: in our speech, our beliefs, media, sports, video games, psychology, art, and even our dreams. Archetypes are universal; that is, they occur across all cultures, religions, and parts of history.
The above plot illustrates Poisson probabilities for Î» = 7.5. and this plot illustrates Poisson probabilities for Î» = 15. The mean of the Poisson distribution is Î». For the Poisson distribution, the variance, Î», is the same as the mean, so the standard deviation is âÎ». Empirical tests. There are also some empirical ways of checking for a Poisson distribution. 1  The simplest and handiest way is to see if the variance is roughly equal to the mean for your Poisson data.
The Volume variance represents the difference between the budget allowance and the standard expenses charged to work in process. If budget allowance is more than the standard expenses charged to production, the variance is called unfavorable volume variance. If budget allowance is less than the standard expenses charged to production, the variance is called favorable volume variance. Overhead volume variance is calculated when overall or net overhead variance is further analyzed using two variance method.