Final answer:
The correct answer is option c. The amount of acceptable deviation from a standard, determined when the standard was established, is known as the range of variation.
Step-by-step explanation:
The correct option is c. Range of variation is the amount of acceptable deviation from a standard, determined when the standard was established. In statistics, the range is a measure of spread that represents the difference between the maximum and minimum values in a data set. It gives an idea of how widely the data is spread out.
For example, let's say a company has a standard for the acceptable weight of a product, with a range of variation of +/- 0.5 grams. This means that any product within the range of 0.5 grams above or below the standard weight is considered acceptable.
Range of variation plays an important role in quality control and setting standards in various fields, including manufacturing, engineering, and healthcare.