Multiple Choice
A quiz consists of 10 multiple-choice questions with 5 choices for each question. Suppose a student is sure of the first 5 answers and has each of the last 5 questions narrowed to 3 of the possible 5 choices. If the student guesses among the narrowed choices on the last 5 questions, find the probability of getting at least a C (at least 70%) . Round your answer to four decimal places.
A) Pr(Grade ≥ C) = 0.0412
B) Pr(Grade ≥ C) = 0.4200
C) Pr(Grade ≥ C) = 0.5391
D) Pr(Grade ≥ C) = 0.4609
E) Pr(Grade ≥ C) = 0.0163
Correct Answer:
Verified
Correct Answer:
Verified
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