SOLUTION: A student takes a 10-question, multiple-choice exam with three choices for each question and guesses on each question. Find the probability of guessing exactly 4 out of 10 correctl

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Question 1084926: A student takes a 10-question, multiple-choice exam with three choices for each question and guesses on each question. Find the probability of guessing exactly 4 out of 10 correctly.
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
SO the probability of answering correctly is 1/3.
P%28X%29=C%2810%2CX%29%2A%281%2F3%29%5EX%2A%282%2F3%29%5E%2810-X%29
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P%284%29=0.228