Which of the Following Is a Discrete Random Variable

question 27

Multiple Choice

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

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Definitions:

Marginal Rate of Substitution

The ratio at which a consumer can exchange quantities of one good for another while preserving the same degree of contentment.

Pareto Optimal

Pareto optimal is a state of allocation of resources in which it is impossible to make any one individual better off without making at least one individual worse off.

Smelted

The process of extracting a metal from its ore by heating and melting, often involving a chemical reduction reaction.

Carload

A shipping term used to indicate the minimum quantity of cargo necessary for goods to be shipped at a carload rate, typically pertaining to rail transport.