For the standard normal distribution, 68% of the observations lie within 1 standard deviation of the mean; 95% lie within two standard deviation of the mean; and 99.9% lie within 3 standard deviations of the mean.To this point, we have been using X to denote the variable of interest (e.g., X=BMI, X=height, X=weight).he standard normal distribution is a normal distribution with a mean of zero and standard deviation of 1.
I have a wholesome tongue and it is a tree of life. mouth, because they are as a honeycomb, sweet to the soul and health to my bones. My words are as deep waters and the wellspring of wisdom as a flowing brook. given me wisdom and out of my mouth cometh knowledge and understanding. mouth is a well of life.
Symptoms & Signs. Hairy tongue, medically known as lingua villosa, is generally a harmless condition that alters the appearance of the tongue, making it appear discolored and furry. Hairy tongue is also commonly referred to as black hairy tongue (lingua villosa nigra), but the tongue discoloration may appear white, brown, pink, or green. The color of the tongue depends both on the underlying condition plus the presence of any additional factors, such as the type of food consumed.