You have a test with eight questions, where you can choose from 3 answers for each question, and one answer is always correct. The probability that we answer 5 or 6 questions correctly when randomly filling in (that is, we all guess the answers) is ……. The average number of correctly guessed questions is ……. . (The quantity has a Binomial distribution of Bi, and the parameters are: the number of questions and probability that I will answer correctly).
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