narrower range
A "narrower range" refers to a limited set of options or variations within a specific category. For example, if a store sells shoes, a narrower range might mean they only offer sneakers in a few colors, rather than a wide variety of styles like boots, sandals, and dress shoes.
In statistics, a narrower range indicates less variability in data. For instance, if the test scores of a class fall between 80 and 85, the range is narrower compared to scores that span from 60 to 100. This suggests that the scores are more similar and clustered closely together.