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4 votes
You take a three-question true or false quiz. You guess on all the questions. What is the probability that you will get a perfect score?

User GertV
by
6.0k points

2 Answers

3 votes
It would be 1/8. 2 to the third is 8, and all three answers correct is one option.
User Minamijoyo
by
6.0k points
6 votes
these are all independent events being that answering one question does not effect the other questions. Each question can be either true or false....so the probability of getting 1 correct is 1/2.

the probability of getting them all correct is : 1/2 * 1/2 * 1/2 = 1/8 <=
User Musa Hafalir
by
6.3k points
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