Examlex
The χ2-test for independence is a useful tool for establishing a causal relationship between two factors.
Standard Deviation
A measure of the amount of variation or dispersion in a set of values, calculated as the square root of variance.
Discrete Random Variable
A type of random variable that can take on a countable number of distinct values, often used to model scenarios where outcomes are countable.
Expected Number
The calculated average or mean value of a numerical random variable, representing what one expects to happen over numerous trials.
Probability Distribution
A statistical function detailing all potential values and their probabilities for a random variable within a specific range.
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