Graphic Presentation of the "Turnability" of an Automobile Traveling at Three Rates of Speed.

Chapter 3 TABULATION

ATTRACTIVENESS can be a characteristic of statistical tables. , Adherence to certain simple suggestions will improve their appearance. Designing is an integral part of every table and should be carefully planned. The actual form which any table takes depends upon the data to be presented.

For suggestions relative to setting up tabulation for reproduction, see the Vari-typer in Chapter 44 and the material about typesetting in Chapter 51.

CLASSIFICATION

TOTAL COUNT

Engines

//

Coal Cars

//

Mail Cars

///

Baggage Cars

nil

Coaches

•HU II

Diners

Pullmans

-HUI

Observations

A Simple Method of Tallying.

1. The above method of tallying, while simple, lends itself to practically all counting procedures.

2. Often, rather than count everything there is to count, one "sample" count or several are

taken. The average of the total of these samples, if chosen according to a logical plan, will give the same result as would be obtained if all were counted.

GRAPHIC PRESENTATION

REFERENCES

Day, E. E., "Standardization of the Construction of Statistical Tables." Journal of the American Statistical Association, Vol. 17, March 1920. This issue of the Journal is so limited that the American Statistical Association cannot sell it. However, it is available in most libraries.

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