A student guesses randomly on four true/false questions on an exam. What is the probability that all answers are correct?

A) 0

B) .0625

C) .3333

D) .5

E) 1

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probability= 1-(4/4)4=0.625

correction please probability is 1/2*1/2*1/2*1/2=1/4*1/4*1/2=0.625

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