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.
This is where we will look at measures of variability, which are statistical procedures to describe how spread out the data is. They are: 1  Range: defined as a single number representing the spread of the data. 2  Standard deviation: defined as a number representing how far from the average each score is.