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.
The mean, median and mode are all valid measures of central tendency, but under different conditions, some measures of central tendency become more appropriate to use than others. measure of central tendency is a single value that attempts to describe a set of data by identifying the central position within that set of data.