Maths Stats Chapter 1 Flashcards

  • Created by: 13gpascoe
  • Created on: 29-10-18 20:00
Population
Whole set of items that are of interest.
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Census
Observes or measures every member of a population.
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Sample
Selection of observations taken from a subset of the population. Used to find out info about population as a whole.
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Sampling units
Individual units of a population.
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Sampling frame
List of sampling units.
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Simple Random Sample
Every sample of size n has an equal chance of being selected.
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Systematic Sampling
When the required elements are chosen at regular intervals from an ordered list.
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Quota Sampling
Interviewer selects a sample that reflects the characteristics of the whole pop.
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Opportunity Sampling
Taking the sample from people available at the time the study is carried out and who fit the criteria you are looking for.
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Quantitative Variables/Data
V/D associated with numerical observations.
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Qualitative Variables/Data
V/D associated with non-numerical observations.
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Continuous Variable
V that can take any value in a given range.
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Discrete Variable
V that can only take specific values in a given range.
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Other cards in this set

Card 2

Front

Observes or measures every member of a population.

Back

Census

Card 3

Front

Selection of observations taken from a subset of the population. Used to find out info about population as a whole.

Back

Preview of the back of card 3

Card 4

Front

Individual units of a population.

Back

Preview of the back of card 4

Card 5

Front

List of sampling units.

Back

Preview of the back of card 5
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