Standard Deviation. Standard deviation is a statistical measurement of the variation in a set of data. Standard deviation indicates how much the values of a certain data set differ from the mean on average.tandard deviation is a statistical measurement of the variation in a set of data. Standard deviation indicates how much the values of a certain data set differ from the mean on average.
The salty taste you are experiencing could be due to many causes. It could be that you are dehydrated especially if you are taking a medicine such as a diuretic, or drinking too much cafienated drinks (coffee, coke.. etc).
It is also important to note that using eye drops can cause the same effect. Eye drop solution will enter the tear ducts, which empties into the nasal cavity where it can make itÂ´s way into the mouth. Eye drops have a very salty taste, so even a small amount in the mouth will give an unpleasant salty taste.