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In taking a multiple-choice test, there are four possible answers for each problem, only one of which is correct. Assume that someone guesses randomly on all 25 problems.
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In taking a multiple-choice test, there are four possible answers for each problem, only one of which is correct. Assume that someone guesses randomly on all 25 problems.

User Rich Tebb
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1 Answer

6 votes
Total number of events
4^25

Probabilty to get all 25 randomly,

1^(4^25)
User Babak
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