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Author Question: Assume you are flipping an unbiased coin and that the flipping process is entirely random. A psychic ... (Read 109 times)

frankwu

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on: Jun 19, 2018
Assume you are flipping an unbiased coin and that the flipping process is entirely random. A psychic claims that he can sense the outcome of each flip. You put him to the test. You flip the coin 6 times and guess what? The psychic correctly calls the outcome each time. If the psychic is really only guessing on each flip, what is the probability of his being correct six out of six times?
 
  a. 0.1094 c. 0.0156
  b. 0.0041 d. 0.0083

Question 2

Assume your friend just took an exam made up of 20 true/false questions. Further assume that your friend had no knowledge relevant to the questions, and consequently just guessed the answer to each question. What is the probability your friend will fail the exam, if a failing grade is 59 or below?
 
  a. 0.8686 c. 0.8693
  b. 0.8684 d. 0.7483


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Bsand8

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Reply #1 on: Jun 19, 2018
Answer to Question 1

C

Answer to Question 2

D


frankwu

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Reply 2 on: Jun 19, 2018
Gracias!

Zebsrer

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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