Sure Stone Tire Company Has Established That the Useful Life

question 80

Multiple Choice

Sure Stone Tire Company has established that the useful life of a particular brand of its automobile tires is normally distributed with a mean of 40,000 miles and a standard deviation of 5000 miles.What is the probability that a randomly selected tire of this brand has a life of at most 30,000 miles?

• A)0.5000
• B)0.4772
• C)0.0228
• D)0.9772
• E)1.0000

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Definitions:

Looks

In economics, "looks" can refer to physical appearance influencing economic outcomes, although it's not a standard economic term.

Indifference Curves

A graphical representation showing combinations of goods or services among which a consumer is indifferent, depicting equal levels of satisfaction.

Preferences

An indication of the comparative liking, desires, or tastes of consumers for one good or service over another.

Parallel

In mathematics and computing, it refers to lines that remain the same distance apart and never meet, or processes occurring simultaneously.