Probability values based on the binomial distribution.
1. A test consists of 10 true/false problems. To pass the test a student must answer at least 7 problems correctly. If a student guesses on each problem, what is the probability that the student would pass the test?
2. A car insurance company has determined that 7 percent of all drivers were involved in a car accident last year. Among the 11 drivers living on one particular street, 3 were involved in a car accident last year. If 11 drivers are randomly selected, what is the probability of getting 3 or more who were involved in a car accident last year?