SOLUTION: Liza Lazy is about to take a 10-item true or false quiz. She was not able to study prior taking this quiz. She needs to get at least 80% to pass. What is the probability of Liza ge
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Question 1148252: Liza Lazy is about to take a 10-item true or false quiz. She was not able to study prior taking this quiz. She needs to get at least 80% to pass. What is the probability of Liza getting a perfect score?
Answer by greenestamps(13208) (Show Source): You can put this solution on YOUR website!
The probability of getting each question right is 1/2.
The probability of getting all 10 questions right is (1/2)^10 = 1/1024.
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