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.
* Post-nasal drainage, such as with a sinus infection (sinusitis) or allergies. Rarely, a salty taste in the mouth is due to a nutritional deficiency, endocrine disorder or neurological disorder, such as epilepsy or migraine. Treatment is directed at the underlying cause, if possible.
Post Nasal Drip. Post nasal drips caused by sinus infections, allergies, or just excessive mucus production in the throat, results in mucus accumulation in the back of the nose and throat. When the mucus drains down to the mouth, it causes a salty taste in the mouth.