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A quiz consists of 20 multiple-choice questions, each with 4 possible answers. For someone who makes random guesses for all of the answers, find the probability of passing if th…

A quiz consists of 20 multiple-choice questions, each with 4 possible answers. For someone who makes random guesses for all of the answers, find the probability of passing if th…
asked 146k views
7 votes
A quiz consists of 20 multiple-choice questions, each with 4 possible answers. For someone who makes random guesses for all of the answers, find the probability of passing if the minimum passing grade is 70 %.

asked
User Jay Wick
by
7.4k points

1 Answer

9 votes
1/80 to get everything right 7/800 to get 70% right
answered
User Simon Meskens
by
7.5k points
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