The Campus Bookstore Knows from the Past Several Semesters That

question 93

Multiple Choice

The campus bookstore knows from the past several semesters that a certain elementary statistics book has a demand that is approximated by a normal distribution with a mean of 250 and a standard deviation of 40.They buy these books for $105 each and sell them to unsuspecting undergraduates at $222 each.All demand for this book is realized by the middle of the semester, at which point the bookstore bundles them up and sells them to a vendor in another country for $40 each.What is the marginal loss for a single elementary statistics book?

• A)$40
• B)$65
• C)$105
• D)$117

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Definitions:

Interpersonal Behaviors

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Social Skills Training

A behavioral therapy intervention aimed at improving interpersonal skills through teaching and practicing appropriate social behaviors.

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A therapy technique used to change negative associations to positive ones, often used to treat phobias.

Anxiety Hierarchy

A list or scale of situations arranged by the level of anxiety they provoke, used in therapeutic contexts, especially in systematic desensitization.