A Coin Is Tossed 20 Times

question 56

Multiple Choice

A coin is tossed 20 times. A person who claims to have extrasensory perception is asked to predict the outcome of each flip in advance. She predicts correctly on 14 tosses. What is the
Probability of being correct 14 or more times by guessing? Does this probability seem to
Verify her claim? Use the normal distribution to approximate the desired probability.

• A)0.4418, no
• B)0.4418, yes
• C)0.0582, no
• D)0.0582, yes

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Definitions:

Performance Benefits

The advantages gained from improved performance, such as increased productivity, higher quality of work, enhanced reputation, and potential financial rewards.

Hardy Personalities

Individuals who exhibit resilience and a positive attitude in the face of stress and adversity.

Promotion-Related Stress

The stress experienced either in the pursuit of a promotion or as a result of the challenges associated with a new, higher-level position.

Strain Reactions

Negative physical or emotional responses that occur when the demands of a task exceed an individual's ability to cope.