SOLUTION: Rework problem 15 from section 3.5 of your text involving a true-false test. Assume that 20 questions are answered by guessing.
What is the probability of exactly 15 correct answe
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-> SOLUTION: Rework problem 15 from section 3.5 of your text involving a true-false test. Assume that 20 questions are answered by guessing.
What is the probability of exactly 15 correct answe
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Question 356004: Rework problem 15 from section 3.5 of your text involving a true-false test. Assume that 20 questions are answered by guessing.
What is the probability of exactly 15 correct answers? Answer by edjones(8007) (Show Source):
You can put this solution on YOUR website! Let x=.5 and y=.5
nCr=20C15=15504
15504x^15y^5=.0148 probability of exactly 15 correct answers.
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Ed
