Question: Your friend Ike forgets to read an assigned chapter. The next day the instructor gives a pop quiz on the chapter. Ike must guess at

Your friend Ike forgets to read an assigned chapter. The next day the instructor gives a pop quiz on the chapter. Ike must guess at every question. The quiz consists of four questions. Each question is multiple-choice, with four choices. What is the probability that Ike will get at least three of the four questions correct?

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