D dolce New member Sep 21, 2009 #1 ...if she guesses? If a girl only knows 40% of the material covered on the exam, but still has a 20% chance of getting the right answer by guessing, what is the probability that she will get it right?
...if she guesses? If a girl only knows 40% of the material covered on the exam, but still has a 20% chance of getting the right answer by guessing, what is the probability that she will get it right?
