Population & Sampling Flashcards

To be able to identify the difference between a census and sample of a population, and discuss the advantages of each method.

1
Q

Census

A

Data collected from the whole population.

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1
Q

Population

A

All the people (or items) in a group you are
interested in.

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2
Q

Sample

A

Data collected from part of the population.

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3
Q

What are the advantages of using a census?

A
  • Unbiased.
  • Accurate because
    it uses the whole
    population.
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4
Q

What are the disadvantages of using a census?

A
  • Takes a long time
  • Expensive
  • Difficult to make sure
    everybody is used if
    lots of people/items in
    population.
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5
Q

What are the advantages of using a sample

A
  • Less expensive.
  • Quicker.
  • Easier because it
    considers less data
    than a census.
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6
Q

What are the disadvantages of using a sample?

A
  • Possibly biased.
  • Not completely
    representative.
  • Sample size may
    be too small.
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7
Q

Sampling Frame

A

A list of the population

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8
Q

Sampling Unit

A

A person or item included in the sample.

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