Examlex
What was the main contribution of Nicholas Copernicus and how did his work depend on other scientists?
National Rate
A statistical measure that represents a specific activity or occurrence across an entire country, often expressed per unit of population.
Dependent Variables
In an experiment, these are the variables that are tested and measured to see if they are affected by changes in the independent variables.
Random Samples
A selection method that gives each member of a population an equal chance of being chosen, often used in research to ensure representativeness.
Children's Thinking
Refers to the ways in which children abstract, deduce, and reason as part of their cognitive development.
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