maths statistics

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8 Terms

1
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population

the while set of items that are of interest

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sample

some subset of the population intended to represent the population

3
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sampling unit

each individual thing in the population that can be sampled

4
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census

we could collect data either from a sample or from the entire population

5
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advantages of census

should give completely accurate result

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advantages sample

cheaper

quicker

less data to process

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disadvantage of census

time consuming

expensive

cannot be used when testing involves destruction

large volume of data to process

8
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sample disadvantages

data may not be accurate

data may not be large enough to represent small sub groups