Examlex
Which of the following is a true statement?
V(X + Y)
The variance of the sum of two random variables, reflecting the spread or variability of their combined distribution.
Probability Distribution
A mathematical description of the likelihood of occurrence of different possible outcomes in an experiment.
Random Variable
A variable whose outcomes are determined by a random phenomenon or process.
Probability Distribution
A mathematical function that provides the probabilities of occurrence of different possible outcomes for an event.
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