Edexcel AS Level Maths Statistics ACTUAL EXAM
QUESTIONS WITH COMPLETE SOLUTION GUIDE
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Practice questions for this set
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Terms in this set (47)
Population The whole set of items that are of interest
Census Observes or measures every member of a population
Advantages of a census It should give a completely accurate result
Time consuming and expensive
Disadvantage of a census
Hard to process large quantity of data
, A selection of observations taken from a subset of the
Sample population which is used to find out information about
the population as a whole
Less time consuming
Advantages of a sample Fewer people have to respond
Less data than a census
The data may not be as accurate
Disadvantage of a sample The data may not be large enough toggle information
about the population
Sampling Units Individual units of a population
A list of individually named or numbered sampling
Sampling Frame
units
A sample where every sampling unit has an equal
Simple Random Sample
chance of being chosen
Free of bias
Advantages of Simple
Easy and cheap to implement
Random Sample
Each sampling unit has equal chance of selection
Disadvantage of Simple A sampling frame is needed
Random Sample Not suitable when the population size is very big
A method of sampling where the required elements
Systematic Sampling
are chosen at regular intervals from an ordered list
Advantages of Systematic Simple and quick to use
Sampling Suitable for large samples
Disadvantages of A sampling frame is needed
Systematic Sampling It can introduce bias if sampling frame is not random
Sample accuracy reflects the population structure
Disadvantages of
guarantees proportional representation of groups
Stratified Sampling
within a population
Advantages of Stratified Population must clearly classified into distinct strata
Sampling
QUESTIONS WITH COMPLETE SOLUTION GUIDE
(A+ GRADED 100% VERIFIED) LATEST VERSION
2025!!
Save
Practice questions for this set
Learn 1 /7 Study with Learn
Terms in this set (47)
Population The whole set of items that are of interest
Census Observes or measures every member of a population
Advantages of a census It should give a completely accurate result
Time consuming and expensive
Disadvantage of a census
Hard to process large quantity of data
, A selection of observations taken from a subset of the
Sample population which is used to find out information about
the population as a whole
Less time consuming
Advantages of a sample Fewer people have to respond
Less data than a census
The data may not be as accurate
Disadvantage of a sample The data may not be large enough toggle information
about the population
Sampling Units Individual units of a population
A list of individually named or numbered sampling
Sampling Frame
units
A sample where every sampling unit has an equal
Simple Random Sample
chance of being chosen
Free of bias
Advantages of Simple
Easy and cheap to implement
Random Sample
Each sampling unit has equal chance of selection
Disadvantage of Simple A sampling frame is needed
Random Sample Not suitable when the population size is very big
A method of sampling where the required elements
Systematic Sampling
are chosen at regular intervals from an ordered list
Advantages of Systematic Simple and quick to use
Sampling Suitable for large samples
Disadvantages of A sampling frame is needed
Systematic Sampling It can introduce bias if sampling frame is not random
Sample accuracy reflects the population structure
Disadvantages of
guarantees proportional representation of groups
Stratified Sampling
within a population
Advantages of Stratified Population must clearly classified into distinct strata
Sampling
