Standard deviation from ungrouped data. The standard deviation is a summary measure of the differences of each observation from the mean. If the differences themselves were added up, the positive would exactly balance the negative and so their sum would be zero. Consequently the squares of the differences are added.
A pissant, also seen as piss ant or piss-ant, refers to a specific type of ant. The word is also used as a pejorative noun or adjective, indicating insignificance.he original pissant is any of a certain group of large ant species, commonly called wood ants, that make mounded nests in forests throughout most of Europe.
â¢ The only thing I have ever known to work to get rid of ants is called Terro. I donât recall that it has a smell (my bottle was borrowed by my sister and not returned!). It is a thick liquid and you put some on a piece of cardboard and set it out where the ants come.s there a cheap way to get rid of ants. I seem to be having the problem several times a year. I just came in from work and the table and counter were full of little black ants and I need something that wont smell. I have a problem and just about any smell makes me sick.