alleryA **random variable** is best defined as:
AThe probability of an event
BA real number chosen by random guess
CA real-valued function defined on the sample space of a random experiment
DA variable with arbitrary letter name
Answer & Solution
Correct answer: C. A real-valued function defined on the sample space of a random experiment
**A random variable X is a function X :** S
→ ℝ from the sample space to real numbers.
It assigns a numerical value to every outcome of the random experiment.
Conventionally denoted by capital letters (X, Y, Z).
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