Use the Normal Distribution to Approximate the Desired Probability

question 66

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 16 tosses. What is the probability of being correct 16 or more
Times by guessing? Does this probability seem to verify her claim?

• A) 0.0069, no
• B) 0.4931, yes
• C) 0.0069, yes
• D) 0.4931, no

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Definitions:

Airborne Precaution

Measures taken to prevent the spread of diseases transmitted by airborne droplets containing infectious agents.

Central Venous Catheter

A tube placed into a large vein, typically in the neck, chest, or groin, to administer medication or fluids, or to measure venous pressure.

Sterile Technique

A set of practices used in medical procedures to prevent contamination by microbes, ensuring a germ-free environment.

Standard Precautions

A set of infection control practices used to prevent transmission of diseases that can be acquired by contact with blood, body fluids, non-intact skin (including rashes), and mucous membranes.