Charles is helping at a shelter and weighed a group of small dogs. The sample mean weight was 3.1 kg and the sample standard deviation was 2.5 kg. Charles found the deviation of each one of the dog's weight from the sample mean, and calculated the mean and standard deviation bf these deviations. Can you find from those deviations what would be the mean and standard deviation? a) Mean of the deviations: 3.1; standard deviation of the deviations: 2.5

b) Mean of the deviations: 0; standard deviation of the deviations: 1

c) Mean of the deviations: 3.1; standard deviation of the deviations: 1

d) Mean of the deviations: 0; standard deviation of the deviations: 2.5