Skills

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Primary data
unprocessed information, collected firsthand by me
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Secondary data
information obtained from published documentary sources that has been analysed.
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Pragmatic sampling
samples that are chosen from those that are easily and safely available
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Random sampling
all the elements of data have an equal chance of being chosen
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Stratified sampling
samples are proportional to their share of the whole
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Systematic sampling
samples are at set intervals from the initial point, which is chosen at random
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Accuracy
the level at which data is exact and free from error
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Reliability
the extent to which sample data reflects the greater whole
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GIS
a tool for storing, organising, displaying and analysing geographical information
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Null hypothesis
that a pattern or relationship is due to chance
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Correlation
to have a relationship (may be positive or negative)
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Degrees of freedom
the number of values in a data set that you can change without changing the total (n-1)
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Other cards in this set

Card 2

Front

information obtained from published documentary sources that has been analysed.

Back

Secondary data

Card 3

Front

samples that are chosen from those that are easily and safely available

Back

Preview of the back of card 3

Card 4

Front

all the elements of data have an equal chance of being chosen

Back

Preview of the back of card 4

Card 5

Front

samples are proportional to their share of the whole

Back

Preview of the back of card 5
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