ESP cards have one of five shapes on them (cross, circle, square, star and waves) with...

 

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ESP cards have one of five shapes on them (cross, circle, square, star and waves) with equal probability. A psychic claims he can guess a card correctly with probability 0.5. James Randy designs an experiment, where the psychic tries to guess N cards, and is considered successful if he made at least N/3 correct guesses. (a) How large does N need to be so that the probability of success is at most 1/1000, if the psychic has no special ability (probability 1/5 at each guess)? (b) For that N, what is the probability of failure if the psychic's claim is true? ESP cards have one of five shapes on them (cross, circle, square, star and waves) with equal probability. A psychic claims he can guess a card correctly with probability 0.5. James Randy designs an experiment, where the psychic tries to guess N cards, and is considered successful if he made at least N/3 correct guesses. (a) How large does N need to be so that the probability of success is at most 1/1000, if the psychic has no special ability (probability 1/5 at each guess)? (b) For that N, what is the probability of failure if the psychic's claim is true? ESP cards have one of five shapes on them (cross, circle, square, star and waves) with equal probability. A psychic claims he can guess a card correctly with probability 0.5. James Randy designs an experiment, where the psychic tries to guess N cards, and is considered successful if he made at least N/3 correct guesses. (a) How large does N need to be so that the probability of success is at most 1/1000, if the psychic has no special ability (probability 1/5 at each guess)? (b) For that N, what is the probability of failure if the psychic's claim is true? ESP cards have one of five shapes on them (cross, circle, square, star and waves) with equal probability. A psychic claims he can guess a card correctly with probability 0.5. James Randy designs an experiment, where the psychic tries to guess N cards, and is considered successful if he made at least N/3 correct guesses. (a) How large does N need to be so that the probability of success is at most 1/1000, if the psychic has no special ability (probability 1/5 at each guess)? (b) For that N, what is the probability of failure if the psychic's claim is true? ESP cards have one of five shapes on them (cross, circle, square, star and waves) with equal probability. A psychic claims he can guess a card correctly with probability 0.5. James Randy designs an experiment, where the psychic tries to guess N cards, and is considered successful if he made at least N/3 correct guesses. (a) How large does N need to be so that the probability of success is at most 1/1000, if the psychic has no special ability (probability 1/5 at each guess)? (b) For that N, what is the probability of failure if the psychic's claim is true? ESP cards have one of five shapes on them (cross, circle, square, star and waves) with equal probability. A psychic claims he can guess a card correctly with probability 0.5. James Randy designs an experiment, where the psychic tries to guess N cards, and is considered successful if he made at least N/3 correct guesses. (a) How large does N need to be so that the probability of success is at most 1/1000, if the psychic has no special ability (probability 1/5 at each guess)? (b) For that N, what is the probability of failure if the psychic's claim is true?

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Probability of guessing the card correct p 15 02 Probability of guessing correctly claimed by ps... View the full answer