The Discrete Random Variable X Is the Number of Students

question 49

Multiple Choice

The discrete random variable X is the number of students that show up for Professor Smith's office hours on Monday afternoons.The table below shows the probability distribution for X.What is the expected value E(X) for this distribution?

• A) 1.2
• B) 1.0
• C) 1.5
• D) 2.0

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Definitions:

Net Income

The profit of a company after all expenses and taxes have been subtracted from total revenue.

Rental Income

Income received from allowing others the use of a property in exchange for payment, typically reported on tax returns and subject to specific rules and taxes.

Repair Expense

Costs incurred to fix or maintain property or equipment, generally deductible in the year they are incurred for tax purposes.

IRC Section 179

Allows taxpayers to deduct the cost of certain property as an expense when the property is placed in service (rephrased definition for §179 Expense).