A multiple-choice test consists of 8 questions. Each question has answer choices of a, b, c, and d, and only one of the choices is correct. If a student randomly guesses on each question, what is the probability that she gets more than 2 correct? Carry your intermediate computations to at least four decimal places, and round your answer to at least two decimal places.

Carry your intermediate computations to at least four decimal places, and round your answer to two decimal places.