The dot plot represents a data set of the number of defectives found per batch of 100 items for 10 batches. (A dot plot shows the number of defectives on the x-axis from 1 to 5. The frequencies are: 1 above 1, 2 above 2, 3 above 3, 2 above 4, and 2 above 5). If an additional batch with 2 defectives is added to this data set to create a new data set of 11 batches, which of the following measures will be greater for the new data set than for the original data set?
I. The median number of defectives
II. The mean number of defectives

I and II
I only
II only
Neither I nor II