It's determined that 85% of time when a driver gets into a car, they will put on their seat belt before starting the engine. Researchers collect a sample of 35% participants. a. What is the probability that exactly 15 of the 25 will put on their seatbelts when they get into the driver's seat, before starting the engine? b. What is the probability that fewer than 3 of the participants will do so? c. What is the probability that more than 23 participants will do so? Whats the mean and standard deviation