In contrast to loose connective tissue types where protein fibers are small and less abundant, dense connective tissues possess large, robust fibers that impart to these tissues considerable strength. Fibers are so numerous the extracellular matrix contains few if any open spaces where ground substance is visible.
Standard deviation is a mathematical measurement of average variance and features prominently in statistics, economics, accounting and finance. For a given data set, the standard deviation measures how spread out numbers are from an average value. Standard deviation can be calculated by taking the square root of the variance, which itself is the average of the squared differences of the mean. When it comes to mutual fund or hedge fund investing, analysts look to standard deviation more than any other risk measurement.
Variance is the average of the squared deviations from the arithmetic mean. The standard deviation is a square root from variance value. The standard deviation is a measure of the variability of values around the mean and is meant to be used with values that are normally distributed (e.g., follow a normal curve).