A test has 15 true or false questions and 10 multiple choice questions (each with 4 choices). All questions are weighted equally. Jack has not studied at all for the test and randomly guesses.
1. What is the probability that Jack gets 96% on the test?
2. Assuming that jack takes the same test 20 different times and the tests determine his final mark (weighted evenly); what is the probability that he will pass the course?