Short Answer
Use the following information for questions:
In an experiment, a person guesses which one of three different cards a researcher has randomly picked (and hidden from the person who guesses). This is repeated four times, replacing the cards each time. Let X = number of correct guesses in the four tries. The probability distribution for X, assuming the person is just guessing, is partially provided below.
-What is the probability that the person would get 3 or more correct guesses?
Correct Answer:

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Correct Answer:
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