sample

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sample

[′sam·pəl]
(science and technology)
Representative fraction of material tested or analyzed in order to determine the nature, composition, and percentage of specified constituents, and possibly their reactivity.
(statistics)
A selection of a certain collection from a larger collection.

sample

A small specimen of material, or a single unit of many such items to be furnished, which is in conformity with the requirements for the specifications; furnished for review and approval; establishes standards by which work will be judged.

sample

(digital signal processing)
The result of measuring the amplitude of an analog signal at a specified time. In digital signal processing a sample is a signed or unsigned number and the number of samples per second is called the sample rate.
References in periodicals archive ?
Assuming that the prevalence of bullying victimisation is 20% in the group with the lower rate and wishing to have 80% power to detect a difference of 5% between the groups (that is, 20% in one and 25% in the other), the required number of students per group for a simple random sample is 1140 students.
It is important to note that the 200 survey respondents were not a simple random sample of the RNZFB membership, and that this means survey weightings must be used when analysing the data.
Each group is a simple random sample from its population.
The following abridged version of one asynchronous discussion thread involving the interpretation of the definition of simple random sample (SRS) demonstrates the power of the withhold intervention.
For MA plans with Medicare populations of more than 1,000 members, a simple random sample of 1,000 members is selected for the baseline survey.
The effective sample size is the size of a simple random sample that would achieve the same precision as this more complex sampling design.
In the basic adaptive cluster sampling (ACS) design, a simple random sample (SRS) of size n is taken; if y (the variable of interest) exceeds c (a criterion value), then neighborhood units are added (e.
Four hundred campers were selected to participate in the study through a simple random sample.

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