Use the following 3, 5, 9, 12, 11 The mean is 8. The standard deviation is 3.87 (Round to the nearest hundredth as needed.) b) Multiply each number in the distribution by 3 and compute the mean and the standard deviation of this new distribution. The mean is 24. The standard deviation is 11.61. (Round to the nearest hundredth as needed.) c) Multiply each number in the original distribution by 9 and compute the mean and the standard deviation of this n distribution. The mean is