Examlex
From past figures, it is predicted that 21% of the registered voters will vote in the March primary. Does this statement describe descriptive or inferential statistics?
Normal Distribution
Another term for Gaussian distribution; a probability distribution that is symmetric around the mean, indicating that data close to the mean are more frequent than data far from the mean.
Variance
A measure of how much values in a dataset differ from the mean or average of the set, indicating the spread of the data.
Test Statistic
A value calculated from sample data during a hypothesis test. It's used to assess the evidence against the null hypothesis.
Chi-squared Distributed
Refers to a statistical distribution that is used to assess the goodness-of-fit of observed data with theoretical expectations under the null hypothesis.
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