SOLUTION: A quick quiz consists of 5 multiple choice problems, each of which has 5 answers, only one of which is correct. You make random guesses on all 5 problems.
(a) How many differen
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Question 1155743: A quick quiz consists of 5 multiple choice problems, each of which has 5 answers, only one of which is correct. You make random guesses on all 5 problems.
(a) How many different ways can you answer the quiz?
answer:
(c) What is the probability that at least one of your 5 answers is incorrect?
answer:
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
5 ways for the first*5*5*5*5=3125 ways to answer
what is the probability all are correct?
That is 0.2^5
=0.00032
The probability at least one is incorrect is 1-0.00032=0.99968
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