Which of the Following Statements About a Discrete Random Variable $\Sigma$

question 69

Multiple Choice

Which of the following statements about a discrete random variable and its probability distribution are true?

• A)Values of the random variable can never be negative.
• B)Negative values of f(x) are allowed as long as \(\Sigma\)f(x) = 1.
• C)Values of f(x) must be greater than or equal to zero.
• D)The values of f(x) increase to a maximum point and then decrease.

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Definitions:

Break-even Point

The level of production or sales at which total revenues equal total expenses, resulting in no net loss or gain.

Variable Costs

Costs that fluctuate in direct relation to the level of production or volume of operations in a business.

Fixed Costs

Costs that remain constant and do not change based on the volume of goods or services a business produces.

Required Sales

The amount of sales a company needs to achieve in order to cover its costs and reach a desired level of profit.