proportional sampling
- noun
- /prəˈpɔrʃənl ˈsæmplɪŋ/
- Specialized
:
muestra proporcional
- Using proportional sampling, the study ensured that each demographic was represented in the survey results according to its proportion in the population.
Examples
-
In proportional sampling, researchers select random samples from each subgroup based on their size in the overall population.
-
The sample of the study was determined according to the random stratified-proportional sampling method.
Academic text (2010) -
Example 1 represents a hypothetical case where proportional sampling was accomplished.
Academic text (1997) -
This means that 10% of total pounds were interviewed for both vessels and boats, i.e., proportional sampling.
Academic text (1997) -
Ideally, under the proportional sampling, the two lines in Figures 2a and 2b should coincide.
Academic text (1997) -
Example 1: Hypothetical data showing proportional sampling results in an unbiased estimate of days fished. PREFORMATTED TABLE
Academic text (1997) -
Under proportional sampling, the lines for L-Vessels and I-Vessels should coincide, and the lines for L-Boats and I-Boats should coincide.
Academic text (1997) -
Proportional sampling helps to achieve an accurate representation of the population by choosing samples that reflect the sizes of the various subgroups.
Synonyms
4
4.4
A small group chosen to show the larger group's main features
1
5.9
A method of dividing people into groups and randomly choosing from each group so the sample matches the whole group
A group where larger groups give more members and smaller groups give fewer members
To choose people by dividing them into groups and picking random people from each group
A sample made by dividing people into groups like age or income and choosing at random from each group
How Representative
- Specialized
1
5.9
- Specialized
- Specialized
1
4.0
Surface Forms
Morphology
The meaning — selecting samples in proportion to subgroup sizes — is directly and compositionally derived from 'proportional' (in proportion) + 'sampling' (selecting samples). Although somewhat technical, this follows regular semantic combination and similar constructions exist across languages, so a B1 learner who knows both constituents should be able to infer the MWE's meaning.
Etymology
Proportional sampling uses a simple picture: imagine cutting a cake so each group's piece matches its share of the whole cake. Proportional means the right sizes and sampling means taking pieces, so it means taking samples from each group 'in proportion to their size' and keeping all groups fairly represented.