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An experiment whose outcomes has to be among a set of events that are completely known but whose exact outcomes is unknown is a

  • A.sample space
  • B.elementary event
  • C.random experiment
  • D.none of these

Answer: C

A random experiment is one whose set of possible outcomes is known in advance but whose particular outcome on any trial cannot be predicted - rolling a die, for instance.

The other terms name different things: the sample space is the set of outcomes, and an elementary event is a single one of them. Neither is the experiment itself.

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