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Which of the following can be represented by a discrete random variable?A. The number of defective light bulbs in a sample of twentyB. The time of a flight between Chicago and New YorkC. The average distance achieved in a series of long jumpsD. The circumference of a randomly generated circle

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Answer:

A. The number of defective light bulbs in a sample of twenty

Explanation:

  • A discrete variable is one that can take only a countable  number of values and   variable refers to the numeric values of the outcomes that are a countable number of possible values