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An Unprepared Student Must Take a 7-Question, Multiple-Choice Test That

Question 147

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An unprepared student must take a 7-question, multiple-choice test that has 5 possible answers per question. If the student can eliminate 2 of the possible answers on the first 4 questions, and if she guesses on every question, what is the probability that she will answer every question correctly? ​


A) Pr(all correct) = An unprepared student must take a 7-question, multiple-choice test that has 5 possible answers per question. If the student can eliminate 2 of the possible answers on the first 4 questions, and if she guesses on every question, what is the probability that she will answer every question correctly? ​ A) Pr(all correct) = B) Pr(all correct) = C) Pr(all correct) = D) Pr(all correct) = E) Pr(all correct) =
B) Pr(all correct) = An unprepared student must take a 7-question, multiple-choice test that has 5 possible answers per question. If the student can eliminate 2 of the possible answers on the first 4 questions, and if she guesses on every question, what is the probability that she will answer every question correctly? ​ A) Pr(all correct) = B) Pr(all correct) = C) Pr(all correct) = D) Pr(all correct) = E) Pr(all correct) =
C) Pr(all correct) = An unprepared student must take a 7-question, multiple-choice test that has 5 possible answers per question. If the student can eliminate 2 of the possible answers on the first 4 questions, and if she guesses on every question, what is the probability that she will answer every question correctly? ​ A) Pr(all correct) = B) Pr(all correct) = C) Pr(all correct) = D) Pr(all correct) = E) Pr(all correct) =
D) Pr(all correct) = An unprepared student must take a 7-question, multiple-choice test that has 5 possible answers per question. If the student can eliminate 2 of the possible answers on the first 4 questions, and if she guesses on every question, what is the probability that she will answer every question correctly? ​ A) Pr(all correct) = B) Pr(all correct) = C) Pr(all correct) = D) Pr(all correct) = E) Pr(all correct) =
E) Pr(all correct) = An unprepared student must take a 7-question, multiple-choice test that has 5 possible answers per question. If the student can eliminate 2 of the possible answers on the first 4 questions, and if she guesses on every question, what is the probability that she will answer every question correctly? ​ A) Pr(all correct) = B) Pr(all correct) = C) Pr(all correct) = D) Pr(all correct) = E) Pr(all correct) =

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