The purpose of this blood serum test is to help detect and evaluate treatment of acute hepatic disease, especially hepatitis, and cirrhosis without jaundice. To help distinguish between mytyocardial (heart) and liver tissue damage (used with the AST enzyme test). Also to assess hepatotoxicity of some drugs.
The average wingspan for an NBA player (even normal 6'0 guys) is +4 inches. I think that around your height thing is just an estimate. For the general population, the average might be +2 inches.
A slightly harder, real life example: The average height for grown men in the United States is 70, with a standard deviation of 3. A standard deviation of 3â means that most men (about 68%, assuming a normal distribution) have a height 3 taller to 3â shorter than the average (67â73) â one standard deviation.f the standard deviation were 20, then some men would be much taller or much shorter than the average, with a typical range of about 50â90. For another example, each of the three groups {0, 0, 14, 14}, {0, 6, 8, 14} and {6, 6, 8, 8} has an average (mean) of 7. But their standard deviations are 7, 5, and 1.