A study on aggressive driving found that 51% of drivers say that they have yelled to another driver. A random sample of 240 drivers in Halifax is selected and are asked whether they have yelled at other drivers. 1. What is the distribution of number of sampled drivers will say "yes", they have yelled at another driver? 2. What are the mean and standard deviation of the number of sampled drivers who will say "yes" 3. What is the probability that at least 115 drivers will say "yes"? What would be the probability if 113 of them did.(Use normal approximation) 4. Use the normal approximation to calculate the probability that there will be exactly 113 sample drivers that will say yes