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A multiple choice examination has 5 ques...

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

`(11)/(3^(5))`

B

`(10)/(3^(5))`

C

`(17)/(3^(5))`

D

`(13)/(3^(5))`

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The correct Answer is:
A
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DIPTI PUBLICATION ( AP EAMET)-THEORETICAL DISTRIBUTIONS-EXERCISE 1 (CHOOSE THE CORRECT ANSWER FROM THE ALTERNATIVE 1,2,3 OR 4 GIVEN )
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