Q.Explain the meaning of classification of data and state its four bases with one example each.

Classification arranges raw data into groups sharing a common characteristic, and that characteristic can be time, place, an attribute, or a measurable variable. …

Classification is the process of arranging raw, unorganised data into groups or classes on the basis of some common characteristic, so that similar items fall together and the data becomes ready for tabulation and further analysis.

The four bases of classification:

1. Geographical — data grouped by place or region. Example: cotton production of India shown state-wise (Gujarat, Maharashtra, Punjab, …).
2. Chronological — data grouped by time period, usually in ascending order. Example: a Gujarat dairy cooperative's milk procurement shown year-wise from 2015 to 2024. …

Students sometimes list only two or three bases and forget the qualitative/quantitative distinction, or confuse 'simple' and 'manifold' classification (manifold m …