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.
The five main flavors that occur in taste acuity: 1  Salty (sodium chloride and other salts) 2  Sweet (sugars) 3  Sour (acids)  Bitter 1  (alkaloids) Umami (savory)-amino acids (Umami means delicious essence)  All other flavors are combinations of these five primary tastes, plus accompanying olfactory and taste sensations.