Examlex
Attitudinal measures are used to measure one's mental ability or knowledge of a topic.
Ch-Squared Distribution
A statistical distribution describing the sum of the squares of variables that follow a standard normal distribution; often used in hypothesis testing.
Degrees of Freedom
The number of independent values or quantities which can be assigned to a statistical distribution or test without violating any constraints.
Confidence Interval
An estimated range of values calculated from a sample that is likely to cover the true population parameter with a certain level of confidence.
Population Variance
A measure of the dispersion or spread of a set of data points in a population, quantifying how much the members of a population differ from the population mean.
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