Using colorful characters to explain the function of our organs in a straight-forward and age-appropriate manner--the gray Sir Rebrum relates The OrganWise Guys Club Rules (eat a low-fat, high-fiber diet, drink lots of water, and get regular exercise); the Kidney Brothers make clear that bodies need lots of water to keep blood clean; Peter Pancreas ...
Considerations for Choosing a Measure of Central Tendency. 1  For a nominal variable, the mode is the only measure that can be used. 2  For ordinal variables, the mode and the median may be used.  For interval-ratio variables, the mode, median, and mean may all be calculated.
QuickMBA / Statistics / Central Tendency. Central Tendency. The term central tendency refers to the middle value or perhaps a typical value of the data, and is measured using the mean, median, or mode. Each of these measures is calculated differently, and the one that is best to use depends upon the situation. Mean. The mean is the most commonly-used measure of central tendency. When we talk about an average, we usually are referring to the mean. The mean is simply the sum of the values divided by the total number of items in the set.