probability

[ssmmss]

The answer to a question is either true or false and assume the person doesn't know the answer to any of them, and we have 5 questions. What is the probability of getting all of them answered correctly.
Answer is 1/2*1/2*1/2*1/2*1/2=.03125 (3.125%)
Is this correct? Thanks.

 

[pka]

The answer to a question is either true or false and assume the person doesn't know the answer to any of them, and we have 5 questions. What is the probability of getting all of them answered correctly.
Answer is 1/2*1/2*1/2*1/2*1/2
Is this correct? Thanks.

How many questions are on the test?
If that are only four then that is correct.

 

[ssmmss]

Thank you all very much.