Examlex
Which of the following were invented centuries ago in China?
Non-directional
A type of hypothesis that does not specify the direction of the expected relationship between variables.
Standard Error
A measure indicating the amount of variation or dispersion of a set of values; specifically, it reflects how much sampling variability a statistic possesses.
Variability
The degree to which data points in a statistical distribution or data set diverge from the mean value.
Sample Means
The average value obtained from a sample, which is a subset of a larger population.
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