The Population of Lengths of Aluminum-Coated Steel Sheets Is Normally

question 123

Multiple Choice

The population of lengths of aluminum-coated steel sheets is normally distributed with a mean of 30.05 inches and a standard deviation of 0.2 inches.What is the probability that a sheet selected at random from the population is between 29.75 and 30.5 inches long?

• A).4332
• B).4878
• C).0546
• D).9210

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Definitions:

Systematic Desensitization

A therapeutic technique used to treat phobias and anxiety disorders by gradually exposing the patient to the feared object or situation in a controlled manner.

Relax

To become less tense or anxious, or to make something less taut or firm, often in the context of stress relief or leisure activities.

Imagine

The ability to form new images and sensations in the mind that are not perceived through the five senses.

Extinction

In psychology, the gradual weakening and eventual disappearance of a conditioned response when the reinforcement is no longer presented.