There are 5 yes or no questions on a test. What is the probability, that if you guess everything, you get everything right.?

Question

Juno is in 4th grade 

Answer 1

Each answer has 1/2 of a chance of being right.  There are 5 independent questions, therefore the probability of getting all 5 of them right is the product of the probabilities, which is

 

(1/2)⁵ = 1/2⁵ = 1/32 = 0.03125,

 

which is 3.125%