SOLUTION: I need assistance with the following statistics:
A literature professor decides to give a 20 question true-false quiz. She wants to choose the passing grade such that the proba
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A literature professor decides to give a 20 question true-false quiz. She wants to choose the passing grade such that the proba
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Question 401943: I need assistance with the following statistics:
A literature professor decides to give a 20 question true-false quiz. She wants to choose the passing grade such that the probability of passing a student who guesses on every question is less than .10. What score should be set as the lowest passing grade?
Thanks,
Glenda Witherspoon Answer by robertb(5830) (Show Source):
You can put this solution on YOUR website! Let X = r.v. representing the number of correct answers.
, to 5 decimal places.
, to 5 decimal places.
Therefore the lowest passing grade is a 7.
