Q.4.(20 points) There are ten cards with one letter: A, B or C written on them. A person picks each card and randomly gu
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Q.4.(20 points) There are ten cards with one letter: A, B or C written on them. A person picks each card and randomly gu
Q.4.(20 points) There are ten cards with one letter: A, B or C written on them. A person picks each card and randomly guesses the letter on it without seeing it. Find the probability that he will correctly guess the letters in seven out of ten cards.
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