The range rule tells us that the standard deviation of a sample is approximately equal to one fourth of the range of the data. In other words s = (Maximum â Minimum)/4. This is a very straightforward formula to use, and should only be used as a very rough estimate of the standard deviation.
Often abbreviated as âDMEâ, durable medical equipment includes various types of walking aids, transfer equipment, bath safety and wheelchairs. As the name implies, this category must be manufactured and tested to be âdurableâ because patients who use this equipment rely on it to keep them safe and comfort.
Last Review: Description of Procedure or Service. Durable Medical Equipment (DME) is any equipment that provides therapeutic benefits to a patient in. need because of certain medical conditions and/or illnesses. Durable Medical Equipment (DME) consists of items which: