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).
1 The heat can break down your skinâs elasticity and natural collagen, which over time can cause your skin to sag. 2  So for younger looking skin, keep your use of the sauna and steam room to a minimum. 3  Constantly Cranking up the AC. If you eat a lot of salty snacks, you may have dehydrated skin. 2  Excessive sodium in your diet can suck the moisture out of your skin and make it appear dull. 3  To avoid this, cut back on salty treats and use a hydrating facial moisturizer. 4  Poor Vision & Squinting.