The endocrine component of the pancreas consists of islet cells (islets of Langerhans) that create and release important hormones directly into the bloodstream. Two of the main pancreatic hormones are insulin, which acts to lower blood sugar, and glucagon, which acts to raise blood sugar.
Variability is a measure of the spread of a data set. Learn more about the different measures of variability including the range, variance, and standard deviation, and how they are used in the field of Psychology.
The variability of a sampling distribution is measured by its variance or its standard deviation. The variability of a sampling distribution depends on three factors: 1  N: The number of observations in the population. 2  n: The number of observations in the sample.