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).4418 , yes
B).0582 , no
C).0582 , yes
D).4418 , no

Question

Quizplus · Accepted Answer

The probability of guessing correctly 14 or more times out of 20 is 0.0582, which is relatively low, suggesting that her claim of extrasensory perception is not verified by this probability.

A Coin Is Tossed 20 Times