Exercise 6-15 (Algo) (LOG-4) Industry standards suggest that 7% of new vehicles require warranty service within the first year. Jones Nissan in Sumter, South Carolina, sold 12 Nissans yesterday (Round your mean answer to 2 decimal places and the other answers to 4 decimal places.) a. What is the probability that none of these vehicles requires warranty service? 9 Answer is complete but not entirely correct. Probability 0.5270 9 b. What is the probability exactly one of these vehicles requires warranty service? 9 Answer is complete but not entirely correct. Probability 0.3622 9 l c. Determine the probability that exactly two of these vehicles require warranty service. 0 Answer is complete but not entirely correct. 0.3056 9 d. Compute the mean and standard deviation of this probability distribution. 0 Answer is complete but not entirely correct. Standard deviation 0'9134 0