A Survey of 13 People at a Bookstore Showed That

question 113

Multiple Choice

A survey of 13 people at a bookstore showed that five had purchased a hardcover book. If seven people are selected at random, what is the probability that four of them had
Purchased a hardcover book?

• A) 0.914
• B) 0.015
• C) 0.089
• D) 0.163

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Definitions:

Positive Reinforcement

A technique in behavior management that involves rewarding desired behaviors to increase the likelihood of their recurrence.

Negative Reinforcement

Negative reinforcement is a behavior modification technique that involves the removal of an unpleasant stimulus to encourage a desired behavior.

Contingent Reinforcement

A strategy in behavior management that involves the delivery of rewards or consequences that are dependent on the performance of the targeted behavior.

Desired Behavior

The specific actions or reactions that an individual or organization seeks to encourage or bring about.