Examlex
Discuss four of Codd's 12 rules for a distributed database and his goal in formulating them.
Stratified Samples
A method of sampling from a population which is divided into subgroups, known as strata, that share similar characteristics.
Convenience Samples
A sampling method where participants are selected based on their ease of accessibility and proximity to the researcher.
Causation
The action of causing something to happen or the relationship between cause and effect.
Correlation
A measure of the relationship between two variables, indicating how one may predict or relate to the other.
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