# There re 5 questions on a T or F quiz. If u guess on each and u need at least 4 correct to pass. what s the probability you will pass?

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- 1 month agoFavorite Answer
There are 32 possible cases. 5 will have 4 correct answers and 1 will have 5 correct answers. Since the probability of getting a question wrong is the same probability as getting it right, then it's a wash and we can just divide the number of cases we're looking for by the possible number of cases

6/32 =>

3/16 =>

0.1875

18.75% chance of passing, if you answer questions randomly.

- ?Lv 71 month ago
Probability of answering question#1 correctly = P(1) = 1/2

Probability of answering 4 questions correctly = P(1)•P(2)•P(3)•P(4)

....................= 1/2•1/2•1/2•1/2

....................= 1/16

....................= 0.0625................ANS

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Thank you so much you were extremely helpful.