An anthropometric study of 1197 North American adult Caucasian males ( mean age 35. 5 years ) found that a man's foot length was 26. 3 cm with a standard deviation of 1. 2 cm.

This information is significant to anthropometric historians, who usually equate the height of populations with their overall health and standard of living.

In recognition of his contribution to the creation of modern electrical science, an international convention signed in 1881 established the ampere as a standard unit of electrical measurement, along with the coulomb, volt, ohm, and watt, which are named, respectively, after Ampère ’ s contemporaries Charles-Augustin de Coulomb of France, Alessandro Volta of Italy, Georg Ohm of Germany, and James Watt of Scotland.

For a meteor, the standard distance for measurement of magnitudes is at an altitude of at the observer's zenith.

These concepts include one-to-one correspondence ( the basis of counting ), comparison to a standard ( used for measurement ), and the 3-4-5 right triangle ( a device for assuring a right angle ).

These models afford advantages over classical test theory, including the capacity to produce standard errors of measurement for each score or pattern of scores on assessments and the capacity to handle missing responses.

Any greater precision depends more on choice of standard than on more careful measurement: the length of the equator in the World Geodetic System WGS-84 is 40, 075, 016. 6856 m which makes the geographical mile 1855. 3248 m, while the International Astronomical Union standard IAU-2000 takes the equator to be 40, 075, 035. 5351 m making the geographical mile 1855. 3257 m, almost a millimetre longer.

This machine was for many years the internationally accepted standard for measurement.

The standard measurement of speed on an ergometer is generally known as the " split ", or the amount of time in minutes and seconds required to travel at the current pace — a split of 2: 00 represents a speed of two minutes per 500 metres, or about.

The adoption of international standards results in the creation of equivalent, national standards that are substantially the same as international standards in technical content, but may have ( i ) editorial differences as to appearance, use of symbols and measurement units, substitution of a point for a comma as the decimal marker, and ( ii ) differences resulting from conflicts in governmental regulations or industry-specific requirements caused by fundamental climatic, geographical, technological, or infrastructural factors, or the stringency of safety requirements that a given standard authority considers appropriate.

The Romans, for example, used the carob seed ( carat or siliqua ) as a measurement standard.

Metrication began in France in the 1790s and spread widely during the following two centuries, to be the internationally dominating measurement system and legal standard.

One standard for measurement is the degree to which a crime affects others or society.

Among other advantages, IRT provides a basis for obtaining an estimate of the location of a test-taker on a given latent trait as well as the standard error of measurement of that location.

The non-functional measurement that improves is that refactored code can be processed by standard synthesis tools, while the original code cannot.

In medicine the millimetre of mercury ( measured with a sphygmomanometer ) is the " gold standard " for blood pressure measurement.

These have now been replaced by the defining points in the International Temperature Scale of 1990, though in practice the melting point of water is more commonly used than its triple point, the latter being more difficult to manage and thus restricted to critical standard measurement.

The great body of available statistics show us that the deviations of a human measurement from its mean follow very closely the Normal Law of Errors, and, therefore, that the variability may be uniformly measured by the standard deviation corresponding to the square root of the mean square error.

It also carries the sense of " standard, measurement, and model ".

The D4σ beam width is the ISO standard definition and the measurement of the M² beam quality parameter requires the measurement of the D4σ widths.

The A-weighting curve has been widely adopted for environmental noise measurement, and is standard in many sound level meters ( see ITU-R 468 weighting for a further explanation ).

Examples of reasons for designating a performance characteristic as a DO rather than as a standard are ( a ) it may be bordering on an advancement in the state of the art, ( b ) the requirement may not have been fully confirmed by measurement or experience with operating circuits, and ( c ) it may not have been demonstrated that the requirement can be met considering other constraints, such as cost and size.

An alternative definition of SNR is as the reciprocal of the coefficient of variation, i. e., the ratio of mean to standard deviation of a signal or measurement:

The accuracy and precision of a measurement process is usually established by repeatedly measuring some traceable reference standard.

Precisely at the moment when it has lost its vision the mind of the community turns out from itself in a search for the ontological standard whereby it can measure itself.

Orders of the day began to specify the standard map for the movement.

They even accept the `` double standard '' of sex morality in a double sense, i.e., both sexes agree that standards for men differ from standards for women, and women apply to both sexes a standard different from that held by men.

Unquestionably Trujillo did some good things for his country: he improved public facilities such as roads and sanitation, attracted industry and investment and raised the standard of living notably.

This condition will undoubtedly continue until such time as a state uniform system of evaluation is established, or through mutual agreement of the local assessing officials for a method of standard assessment practice to be adopted.

undertake economic studies and surveys to determine present and prospective costs of producing water for beneficial consumptive purposes in various parts of the United States by the leading saline water processes as compared with other standard methods.

The estimated standard deviations of the data for two of the resistors were 1 millidegree ; ;

As a first step toward this goal, arrangements were worked out for comparing the scales now in use through circulation of a group of standard platinum resistance thermometers for calibration by each national laboratory.

Perhaps the outstanding standard bearer of Mr. Brown's tradition for accuracy was Mr. Oscar J. Beale, whose mechanical genius closely paralleled that of Mr. Brown, and whose particular forte was the development of the exceedingly accurate measuring machinery that enabled Brown & Sharpe to manufacture gages, and therefore its products, with an accuracy exceeding anything then available elsewhere in the world.

Another growth factor is increased consumer demand for better quality and larger quantities of fabrics that go with a rising standard of living.

Any alteration of one of these factors is distortion, although we generally use that word only for effects so pronounced that they can be stated quantitatively on the basis of standard tests.

The symbol for subtraction is the standard minus sign.

Actually, the engine displacement formula is the standard formula for computing the volume of a cylinder of any type with an added factor that represents the number of cylinders in the engine.

The most intriguing aspect of the S & W Magnum chambered for the new Jet is that it can also fire standard

For example, a Browning trap version of the Superposed over/under, the Broadway ( from $350 up, depending on grade ), differs from standard models in that it is equipped with a full beavertail fore end, a cushion recoil pad and a barrel-wide ventilated rib for fast sighting.

Wall panels and structural timbers are standard as are windows and doors, making for a minimum of cutting.

There are standard sliding glass windows in wood or aluminum frames for those panels requiring them.

Practically all bulky housing products can now be ordered in standard units palletized or unitized for mechanical handling -- including lumber, asphalt shingles, glass block, face brick, plaster, lime, hardboard, gypsum wallboard and sheathing, cement, insulation sheathing, floor tile, acoustical tile, plaster base, and asbestos shingles.

Of these, 376 said they make no extra charge for strapping in standard units, because they save enough on mechanized carloading to offset their strapping cost.

Lumber dealers and lumber manufacturers have agreed on a standard unit for unitized shipments -- 48'' '' wide by a nominal 30'' '' high ( or six McCracken packets 24'' '' wide by nominal 7'' '' high ).

Harris has indicated that two devices, the Launder-Ometer and Terg-O-Tometer are most widely used for rapid detergent testing, and he has listed the commercially available standard soiled fabrics.