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Mathematics, 31.03.2020 04:27, lawanda90303
A multiple-choice test has 27 questions. Each question has 5 possible answers, of which only one is correct. What is the probability that sheer guesswork will yield exactly 18 correct answers?
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Answers: 3
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Out of $20$ creepy-crawly creatures in a room, $80\%$ are flies and $20\%$ are spiders. if $s\%$ of the total legs belong to spiders, what is $s$?
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