The Discrete Random Variable X Is the Number of Passengers $$\begin{array} { l c c c c r } X & 0 & 1 & 2 & 3 & \text { Total } \\P ( X ) & 20 & 40 & 30 & 10 & 1.00\end{array}$$

question 34

Multiple Choice

The discrete random variable X is the number of passengers waiting at a bus stop. The table below shows the probability distribution for X. What is the expected value E(X) for this distribution? $$\begin{array} { l c c c c r } X & 0 & 1 & 2 & 3 & \text { Total } \\P ( X ) & 20 & 40 & 30 & 10 & 1.00\end{array}$$

• A)1.1
• B)1.3
• C)1.7
• D)1.9

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Definitions:

Closing Entries

Journal entries made at the end of an accounting period to transfer temporary account balances to permanent accounts, thus preparing the books for the next period.

Income Summary

An account used in the closing process that summarizes revenues and expenses for a period, transferring the net amount to retained earnings.

Sales Returns

Transactions where customers return defective, unsatisfactory or unwanted products back to the seller, resulting in a reversal of revenue.

Accounts Receivable

Financial obligations of customers towards a business for delivered but unpaid goods or services.