Question 927845: A student takes a 5-question multiple choice quiz with 4 choices for each question. If the student guesses at random on each question, what is the probability that the student get zero score in this quiz?
0.237
0.257
-0.013
0.207
Answer by jim_thompson5910(35256)   (Show Source):
You can put this solution on YOUR website! 4^5 = 1024 ways to answer the quiz
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3 ways to mess up on problem 1
3 ways to mess up on problem 2
3 ways to mess up on problem 3
3 ways to mess up on problem 4
3 ways to mess up on problem 5
3^5 = 243 ways to get a 0
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243/1024 = 0.2373046875 which rounds to 0.237
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Final Answer: 0.237
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