Number of Motorcycles The Probability Distribution of a Discrete Random Variable X Is

question 139

Short Answer

Number of Motorcycles
The probability distribution of a discrete random variable X is shown below, where X represents the number of motorcycles owned by a family.

-{Number of Motorcycles Narrative} Apply the laws of expected value to find the following:
a.
E(X²)
b.
E(2X² + 5)
c.
E(X - 2)²

---

Definitions:

Withdrawal Account

An account that tracks the money taken out of a business by its owners for personal use.

Capital

Represents the financial resources used by a business to fund its operations and growth, often in the form of money, assets, or equity.

Income Summary

An account to which the revenues and expenses are transferred in order to close the books and transfer the net balance to owner’s equity.

Real Account

A permanent account in accounting that tracks the balances of assets, liabilities, and equity, and is not closed at the end of the accounting period.