In a test for esp extrasensory perception a subject is told, Ask an Expert

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In a test for ESP (extrasensory perception), a subject is told that cards the experimenter can see but he cannot contain either a star, a circle, a wave, or a square. As the experimenter looks at each of 20 cards in turn, the subject names the shape on the card. A subject who is just guessing has probability 0.25 of guessing correctly on each card.

(a) The count of correct guesses in 20 cards has a binomial distribution. What are n and p?

(b) What is the mean number of correct guesses in many repetitions of the experiment?

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Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M91012209

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