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Mathematics, 13.12.2019 00:31, mandilynn22
What is the value of x in the equation -2/5 x-2=18 ? -50 -40 -8 -6
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Answers: 2
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In a test for esp (extrasensory perception), a subject is told that cards only the experimenter can see 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 20 cards for subjects who are just guessing? c. what is the probability of exactly 5 correct guesses in 20 cards if a subject is just guessing?
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What is the value of x in the equation -2/5 x-2=18 ? -50 -40 -8 -6...
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