What is the default range of typical values in continuous fields?

The default range of typical values in continuous fields is commonly defined as the mean plus or minus three times the standard deviation. This range encompasses approximately 99.7% of the data in a normal distribution according to the empirical rule, also known as the 68-95-99.7 rule.

This statistical principle helps in identifying values that can be considered as "typical" or within a normal range, allowing analysts to understand the expected variability in the dataset and to identify potential outliers. By using this specific range, one can ascertain a greater confidence that the measurements or data points falling within these bounds represent the majority of the dataset, thus aiding in effective data analysis and interpretation.

Options that suggest different multipliers, such as two or more than three standard deviations, lead to narrower or broader ranges that do not accurately reflect the standard statistical understanding of data dispersion in normal distributions. Thus, the choice of three standard deviations aligns perfectly with established statistical practices.