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Statistics - Coggle Diagram
Statistics
Topic 1
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Sample - A selection of observations from a subset of the population which is used to find out information about the population as a whole.
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In a grouped frequency table, the groups are known as classes.
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Types of sampling
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Stratified sampling - The population is divided into mutually exclusive strata and a sample is taken from each.
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Topic 6
Binomial probability can be used if:
- There are a fixed number of trials.
- Binary outcomes.
- Fixed probability of success.
- Trials are independent of each other.