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.
True. 8. The coefficient of variation measures variability in a data set relative to the size of the arithmetic mean. True. 9. The coefficient of variation is a measure of central tendency in the data. False. 10. If a set of data is perfectly symmetrical, the arithmetic mean must be identical to the median. True. 11.