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What is the level of measurement for Year of Birth nominal or ordinal?
Year of birth is interval level of measurement; age is ratio.
What level of measurement is used for age?
It's Ratio.
Which level of measurement is required when determining median?
interval
Is grade scores an example of ratio scales?
Grade scores are an ordinal level of measurement. A ratio level of measurement would be weight of a person or how much money a person has.
What is the smallest accurate measurement that can be made on an engineers rule?
0.01mm
Why do significant figures represent the precision of a measurement and not its accuracy.?
Significant figures represent the precision of a measurement because they indicate the level of uncertainty in a measurement due to the limitations of the measuring tool used. Accuracy, on the other hand, refers to how close a measured value is to the true value. The number of significant figures does not necessarily reflect the accuracy of a measurement, as a measurement can be precise (consistent) but not accurate (close to the true value).
What does grain mean in DT?
In Decision Trees, "grain" typically refers to the level of detail or specificity at which data is analyzed or split. A finer grain implies a higher level of detail or smaller subsets, while a coarser grain implies a broader level of classification. The choice of grain can impact the accuracy and interpretability of the decision tree model.
Can accuracy depend on the precision of the instrument?
Yes, accuracy can depend on the precision of the instrument. The precision of an instrument determines the level of detail and resolution in measurements, while accuracy refers to how close the measured value is to the true value. Higher precision can improve the accuracy of measurements by reducing random errors, but it does not guarantee accuracy if there are systematic errors present in the instrument.
How do you find the least precision?
To find the least precision, look for the smallest increment or smallest degree of accuracy in the measurement tool or system being used. This is usually the smallest unit of measurement that the tool can detect or the smallest change that the system can register. Identifying the least precision helps in understanding the level of detail or accuracy that can be reliably obtained from the measurement.
What factors affect the quality of information?
Accuracy relevance age completeness how the information is presented the level of detail reliability of the source
How many type of scale in geography?
There are generally three types of scales in geography: map scale, geographical scale, and cartographic scale. Map scale refers to the relationship between a distance on a map and the actual distance on Earth. Geographical scale refers to the level of geographical area being studied, from local to global. Cartographic scale refers to the level of detail and accuracy represented on a map.
Why is it possible for data to be precise but inaccurate?
Data can be precise but inaccurate because precision refers to the level of detail and consistency in measurements, while accuracy relates to how close those measurements are to the true value. It is possible for precise data points to be consistently incorrect, leading to inaccuracies despite the level of precision.
What does precision depend on?
Precision relies on the level of detail and specificity in the measurements or data being collected. It is influenced by factors such as the instruments or methods used for measurement, the consistency of data collection, and the level of accuracy in recording data. Additionally, precision can be affected by human error, environmental conditions, and the overall variability in the data being measured.
When measuring with a graduated cylinder you pour liquid into a what?
When measuring with a graduated cylinder, you pour the liquid into the cylinder to a precise level. Read the measurement at the bottom of the meniscus, which is the curved surface of the liquid. Be sure to read the measurement at eye level for accuracy.
How many feet are there in 257 cm?
8.43175853 feetWould that level of accuracy be justified by the precision of the measurement of 257 cm, or the conversion factor?
What is is the resolution of sounder?
The resolution of a sounder is the smallest detectable change in a measured value. It represents the level of detail or accuracy that the sounder can provide in its measurements.
Give the use of significant figure?
It refers to the number of of some numerical value thet was obtained from an accepted level of accuracy
