Use the Normal Distribution to Approximate the Desired Probability

question 6

Multiple Choice

Use the normal distribution to approximate the desired probability.
-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?

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

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Definitions:

Distress

Negative stress that can result in anxiety or concern, often triggered by unpleasant events or situations.

Eustress

Positive stress that motivates and energizes individuals, leading to improved performance and well-being.

GAS

Stands for General Adaptation Syndrome, detailing the body's physiological response to stress through stages of alarm, resistance, and exhaustion.

Alarm

A device or system designed to alert individuals to a specific danger or a reminder of an event.