Two students taking a multiple choice exam with 20 questions and four choices for each question have the same incorrect answer on eight of the problems. The probability that student B guesses the same incorrect answer as student A on a particular question is 1/4. If the student is guessing, it is reasonable to assume guesses for different problems are independent. The instructor for the class suspects the students exchanged answers. The teacher decides to present a statistical argument to substantiate the accusation. A possible model for the number of incorrect questions that agree is:
+3
Answers (1)
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “Two students taking a multiple choice exam with 20 questions and four choices for each question have the same incorrect answer on eight of ...” in 📗 Mathematics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Home » Mathematics » Two students taking a multiple choice exam with 20 questions and four choices for each question have the same incorrect answer on eight of the problems.