Exhibit 6-5

question 85

Multiple Choice

Exhibit 6-5.The mean travel time to work is 25.2 minutes (U.S.Census 2010) .Further,suppose that commute time follows a log-normal distribution with a standard deviation of 10 minutes. Refer to Exhibit 6-5.What is the probability a randomly selected U.S.worker has a commute time of less than 20 minutes?

• A)30.15%
• B)34.09%
• C)65.91%
• D)69.85%

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Definitions:

In‐line Skates

A type of roller skate where the wheels are arranged in a single line to mimic the blade of an ice skate, allowing for a variety of maneuvers.

Equilibrium

A state in a market or economy where supply equals demand, resulting in price stability and no net change in economic quantities.

ATC Curve

A graphical representation of the Average Total Cost, depicting how average cost of production varies with the quantity of output produced.

Efficient

Describes a process or system that achieves maximum productivity with minimum wasted effort or expense.