A literature professor decides to give a 10-question true - false quiz to determine who has read an assigned novel. b. She wants to choose the passing grade such that the probability of passing a...

A literature professor decides to give a 10-question true - false quiz to determine who has read an assigned novel.

b. She wants to choose the passing grade such that the probability of passing a student who guesses on every question is less than .05. What score should she set as the lowest passing grade?