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English Marks -

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iHUa oj W. (iamtU <n the Journal of the Koyal SlallsHcal Society. 1910

Brinton. Graphic Methods.' McGraw-Hill. 1014 SCALE Q

Examination Marks Obtained by 9,396 English School Girls in English and Arithmetic.

1. Each girl is represented by one dot showing the grade in English and the grade in

arithmetic. The dots are arranged uniformly inside squares formed by co-ordinate lines spaced ten units apart.

2. The straight diagonal line drawn from zero shows equal ability in the two studies.

The heavy wavy line is drawn through points having an equal number of dot^ on cither side of the line. Its position indicates that girls generally have more ability in English than in arithmetic.

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GRAPHIC PRESENTATION

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U S. Dcpartmfnt of Commerce. Bureau of Foreign and Domestic Commerce.

SCALE .5

A. Ratio of Estimated Market Value of Property January I, 1934, to Average Annual Family Income for 1933, by Income Classes in Four Geographical Divisions of the United States.

1. Five geographical divisions which were included in the original group have been

omitted.

2. The method of reading these charts is as follows: in the Pacific section, represented

by the four cities listed, the property of a family with an annual income of about $1,200 would be equal in value to about three times the income.