Examlex
Which of the following is a true statement?
Random Sample
A subset of individuals chosen from a larger set, where each individual is selected randomly and entirely by chance, ensuring that every subset of the population has an equal probability of being chosen.
Females
Individuals of the female sex or gender, characterized biologically by two X chromosomes in mammals.
Expected Value
The long-run average value of repetitions of the same experiment or random trial, indicating the central tendency.
Random Variable
A variable that can take on numerical results from a random event or experiment.
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