If you did not read before taking a quiz, you're guessing the answers.
A) What is the probability of getting all 5 questions correct by guessing if each question has 3 answer choices (a,b, and c).
B) What is the probability of getting all wrong?
A) What is the probability of getting all 5 questions correct by guessing if each question has 3 answer choices (a,b, and c).
B) What is the probability of getting all wrong?
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P(correct choice) = 1/3
A) P( all five correct) = (1/3)^5 = 1/243
B) P(wrong) = 2/3, P(all five are wrong) = (2/3)^5 = 32/243
A) P( all five correct) = (1/3)^5 = 1/243
B) P(wrong) = 2/3, P(all five are wrong) = (2/3)^5 = 32/243
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I'd say your chance for A is 1 in 15 for B about the same maybe double(1 in 30) because you didn't read up.