Examlex
In an operating photovoltaic cell, electrons move through the external circuit to the negatively charged p-type silicon wafer. How can the electrons move to the negatively charged silicon when they themselves are negatively charged? Don't like signs repel each other?
Independent Samples
Two or more groups of data that are collected from separate, non-related populations or entities.
Dependent Samples
Pairs of samples where the members of one sample are related or matched to the members of the other sample, often used in before-and-after studies.
Dependent-Samples T Test
A method in statistics for comparing the average differences between two related or matched groups to determine if the differences are not due to random chance.
Regression
A statistical method used to determine the relationship and predict outcomes between dependent and independent variables.
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