Find (By Inspection) the Expected Value and the Variance of the Random

question 43

Short Answer

Find (by inspection) the expected value and the variance of the random variables with the following density function: $f ( x ) = 0.2 e ^ { - 0.2 x } , x \geq 0$ Enter your answer as just two integers separated by a comma, the first representing E(X) and the second representing Var(X).

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Definitions:

Accounts Used

Specific accounts utilized in accounting to record and track financial transactions.

Equity

The value of an asset after deducting the amount of liabilities or the ownership interest in a company.

Revenues

Sum of income from the primary business activities of a company, which includes sales of its products or services.

Unearned Revenues

Money received by a company for goods or services that have yet to be delivered or performed, considered a liability until earned.