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On a multiple-choice exam with 3 possibl...

On a multiple-choice exam with 3 possible destructive for each of the 5 questions, the probability that a student will get 4 or more correct answers just by guessing is

A

`11/243`

B

`3/8`

C

`1/243`

D

`5/243`

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The correct Answer is:
a
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