Let X = the Time (In Minutes) That a Postal

question 21

Multiple Choice

Let X = the time (in minutes) that a postal clerk spends with her customers.This time is known to have an exponential distribution with an average of 4 minutes.What is the variance for this distribution?

• A) 16
• B) 0.25
• C) 0.0625
• D) 0.025

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Definitions:

Tires Lean Outward

When Tires Lean Outward, it refers to a condition known as positive camber in vehicle alignment, where the top of the tire is farther out than the bottom, affecting handling and tire wear.

Kingpin

A critical component in the steering mechanism of a vehicle, particularly in trucks, that allows the front axle to pivot.

Tapered

Describes an object or structure that gradually decreases in thickness or width towards one end.

Tie Rod

A crucial part of the steering mechanism that transmits force from the steering center link or rack gear to the steering knuckle, causing the wheels to turn.