An Elementary Manual of Statistics (Classic Reprint)

Excerpt from An Elementary Manual of Statistics<br><br>1. Statistics are numerical statements of facts in any department of inquiry, placed in relation to each other; statistical methods are devices for abbreviating and classifying the statements and making clear the relations. The elementary methods are based on arithmetical processes of an easy but specialized kind; more refined methods, necessary for certain classes of investigation, involve complex mathematical ideas.<br><br>2. Statistical treatment is necessary in a very great variety of cases, some of which may be distinguished as follows-<br><br>Groups. - If a large number of things or persons have something in common, e.g. as members of the same nation, workers in the same occupation, houses in a defined locality, but differ one from the other in respect to some measurable characteristic, e.g. age, amount of wages, rateable value, together they form a statistical group. Groups can be represented by diagrams, tabulated in grades, or described in abbreviated form by averages.<br><br>About the Publisher<br><br>Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com<br><br>This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.