## An Introduction to Statistical Analysis |

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### Términos y frases comunes

arranged associated average boundaries called cards Chapter characteristic class interval coefficient column computation considered correlation corresponding cross decimal definition desired determine discussion distribution divided drawing drawn equal example Exercise explained expressed figures Formula frequency given gives graphs greater Hence illustrate inches increase individuals interval length less locate logarithmic scale logarithms lower mathematical mean measurements median method multiplied namely normal observe obtained original pairs perfect placed possible error pounds practice preceding primary list Principle Prop pupils quantities quartile quotient reading relative represented respectively result sample scale Section segments selected sequence set of numbers significant single-number approximation smallest standard deviation statistical student Table Theorem tion true values Type unit universe upper variable vertical weight whole write written zero

### Pasajes populares

Página 86 - The general arrangement of a diagram should proceed from left to right. " 2. Where possible represent quantities by linear magnitudes, as areas or volumes are more likely to be misinterpreted. " 3. For a curve the vertical scale, whenever practicable, should be so selected that the zero line will appear on the diagram.

Página 88 - ... 7. When the scale of a diagram refers to dates, and the period represented is not a complete unit, it is better not to emphasize the first and last ordinates, since such a diagram does not represent the beginning or end of time.

Página 85 - The committee is making a study of the methods used in different fields of endeavor for presenting statistical and quantitative data in graphic form. As civilization advances there is being brought to the attention of the average individual a constantly increasing volume of comparative figures and general data of a scientific, technical and statistical nature. The graphic method permits the presentation of such figures and data with a great saving of time and also with more clearness than would otherwise...

Página 92 - ... 16. All lettering and all figures on a diagram should be placed so as to be easily read from the base as the bottom, or from the right-hand edge of the diagram as the bottom. Fig. 16. 17. The title of a diagram should be made as clear and complete as possible. Sub-titles or descriptions should be added if necessary to insure clearness.

Página 61 - The logarithm of any power of a number is equal to the logarithm of the number multiplied by the exponent of the power.

Página 91 - ... 12. The horizontal scale for curves should usually read from left to right and the vertical scale from bottom to top. "13. Figures for the scales of a diagram should be placed at the left and at the bottom or along the respective axes.

Página 90 - The curve lines of a diagram should be sharply distinguished from the ruling. 11. In curves representing a series of observations, it is advisable, whenever possible, to indicate clearly on the diagram all the points representing the separate observations.

Página 72 - The logarithm of the product of two or more numbers is equal to the sum of the logarithms of the numbers. For, let m and n be two numbers, and x and y their logarithms. Then, by the definition of a logarithm, m — ax, and n = a».

Página 85 - Chairman, American Society of Mechanical Engineers. 7 East 42d Street, New York City. Leonard P. Ayres, Secretary, American Statistical Association. 130 East 22d Street, New York City. NA Carle, American Institute of Electrical Engineers. Robert E. Chaddock, American Association for the Advancement of Science. Frederick A Cleveland, American Academy of Political and Social Science. HE Crampton, American Genetic Association. Walter S.

Página 89 - ... 8. When curves are drawn on logarithmic co-ordinates, the limiting lines of the diagram should each be at some power of ten on the logarithmic scales. 9. It is advisable not to show any more co-ordinate lines than necessary to guide the eye in reading the diagram.