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.
This accounts for the five primary tastes â sweet, salty, sour, bitter and umami (also known as savory). Below is a list of chemicals that are trigger certain taste sensations. 1  Sour taste â hydrogen ions.2  Salty taste â ionized salts (anions and cations), especially sodium ions.his accounts for the five primary tastes â sweet, salty, sour, bitter and umami (also known as savory). Below is a list of chemicals that are trigger certain taste sensations. 1  Sour taste â hydrogen ions.