Z Is a Standard Normal Random Variable

question 57

Multiple Choice

z is a standard normal random variable.The P(z  2.11) equals

• A)0.4821
• B)0.9821
• C)0.5
• D)0.0174

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Definitions:

Profit

The financial gain achieved when the revenues generated from business activities exceed the expenses, costs, and taxes needed to sustain those activities.

Available Seat

A term often used in the transportation industry, referring to a seat that is unoccupied and can be reserved or purchased by a customer.

Load Factor

A measurement used in transportation to assess the efficiency of a carrier by comparing the amount of utilized space or weight capacity versus the total available.

Operating Expense

Expenses incurred during the normal functioning of a business, excluding the cost of goods sold and fixed costs.