The Life Expectancy of a Particular Brand of Tire Is

question 53

Multiple Choice

The life expectancy of a particular brand of tire is normally distributed with a mean of 40,000 and a standard deviation of 5,000 miles.What is the probability that a randomly selected tire will have a life of exactly 47,500 miles?

• A) 0.0000
• B) 0.9332
• C) 0.0668
• D) 0.4993

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Definitions:

Displacement

An aggressive mechanism in which an individual directs his or her anger toward someone who is not the source of the conflict.

Bending Moments

A measure of the bending effect on an element due to external forces or moments applied to it, crucial in the design and analysis of structures.

Defense Mechanism

Psychological strategies used unconsciously by individuals to protect themselves from anxiety or to maintain a sense of self-esteem.

Displacement

The transfer of emotions or reactions from the original source of stimulation to another target.