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

---

Definitions:

Sudanese

Pertaining to Sudan, its people, culture, or languages; can also refer to specific ethnic classification systems in anthropology.

Eskimo

A term historically used to describe Inuit and Yupik peoples of the Arctic, though it is considered outdated and potentially offensive in some contexts.

Nigerian

Pertaining to Nigeria, a country located in West Africa, known for its diverse cultures, languages, and as one of the largest economies and populations on the continent.

Kinship Terminology

The system of terms and classifications societies use to refer to relatives and define relationships among family members.