Year 1 Statistics- Chapter 1: Data Collection

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  • Created by: 13clarken
  • Created on: 02-01-20 10:38
A ... is the whole set of items that are of interest
Population
1 of 17
A ... observes or measures every member of a population
Census
2 of 17
A ... is a selection of observations taken from a subset of the population which is used to find out the information about the population as a whole
Sample
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Individual units of a population are known as ...
Sampling Units
4 of 17
Often sampling units of a population are individually named or numbered to form a list called a ...
Sampling Frame
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A ... sample of size n is one where every sample of size n has an equal chance of being selected
Simple Random
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In ... sampling, the required elements are chosen at regular intervals from an ordered list
Systematic
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In ... sampling, the population is divided into mutually exclusive strata (e.g. males and females) and a random sample is taken from each
Stratified
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In ... sampling, an interviewer or researcher selects a sample that reflects the characteristics of the whole population
Quota
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... sampling consists of taking the sample from people who are available at the time the study is carried out and who fit the criteria you are looking for
Opportunity
10 of 17
Variables or data associated with numerical observations are called ... variables or ... data.
Quantitative
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Variables or data associated with non-numerical observations are called ... variables or ... data.
Qualitative
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A variable that can take any value in a given range is a ... variable
Continuous
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A variable that can take only specific values in a given range is a ... variable
Discrete
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Class ... tell you the maximum and minimum values that belong in each class
Boundaries
15 of 17
The class ... is the difference between the upper and lower class boundaries
Width
16 of 17
The ... is the average of the class boundaries
Midpoint
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Other cards in this set

Card 2

Front

A ... observes or measures every member of a population

Back

Census

Card 3

Front

A ... is a selection of observations taken from a subset of the population which is used to find out the information about the population as a whole

Back

Preview of the front of card 3

Card 4

Front

Individual units of a population are known as ...

Back

Preview of the front of card 4

Card 5

Front

Often sampling units of a population are individually named or numbered to form a list called a ...

Back

Preview of the front of card 5
View more cards

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