Which of the following is a discrete random variable?

a. The number of times a student guesses the answers to questions on a certain test.
b. The amount of gasoline purchased by a customer.
c. The amount of mercury found in fish caught in the Gulf of Mexico.

d. The height of water-oak trees.


a
RATIONALE: A discrete random variable can only take on specified discrete values.

Business

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Fill in the blank(s) with correct word

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