Examlex
The official settlements account records the change in official U.S. reserves.
Scientific Investigation
A systematic process undertaken to gain knowledge and understanding about the natural world, following empirical and measurable evidence.
Hypothesis
A proposed explanation for a phenomenon, made as a starting point for further investigation, which can be tested through experimentation or observation.
Phenomenon
An observable event or a remarkable occurrence that can be scientifically described or investigated.
Null Hypothesis
An empirically testable hypothesis that two phenomena are entirely unrelated except perhaps by random chance.
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