JEE Math Practice Question
A multiple choice examination has $$5$$ questions. Each question has three alternative answers of which exactly one is correct. The probability that a student will get $$4$$ or more correct answers just by guessing is :
- A.$${{17} \over {{3^5}}}$$
- B.$${{13} \over {{3^5}}}$$
- C.$${{11} \over {{3^5}}}$$
- D.$${{10} \over {{3^5}}}$$
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