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random
01
aleatório, casual
chosen, done, or happening by chance and without any particular plan, method, or purpose
Example
He found a random book on the shelf that turned out to be quite interesting.
She received a random email from an old friend she had n't heard from in years.
The computer program generates random numbers for statistical analysis.
02
aleatório, randomizado
occurring in such a way that each possible outcome has a certain probability of occurring, but the specific outcome cannot be predicted with certainty
Example
A random sample is selected from the population in such a way that each member has an equal chance of being chosen.
The random variable X represents the number of heads obtained when flipping a coin three times.
Random sampling techniques help statisticians make inferences about a population based on data collected from a smaller subset.
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