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In an examination there are twenty multi...

In an examination there are twenty multiple choice question each of which is supplied with four possible answers. What is the probability that a candidate would score `80%` or more in the answer to these questions ?

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The correct Answer is:
`(424996)/(4^(20))`
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ARIHANT PUBLICATION-PROBABILITY-ODISHA BUREAU.S TEXT BOOK SOLUTIONS (EXERCISE 6(D))
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