Examlex
Positron emission is the name given to describe the production of new neurons.
Unemployment Rate
The fraction of people in the labor force who are without jobs and are looking for employment.
Random Sample
A subset of individuals chosen from a larger set (population) in such a way that every member has an equal chance of being included.
Null Hypothesis
A statistical proposition that asserts the absence of a difference or effect, typically to be tested against an alternative hypothesis suggesting a significant effect or relationship.
Null Hypothesis
A default hypothesis that there is no significant difference or effect, used as a basis for statistical testing.
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