Carmen is Human Resources Manager for two hospitals in a metropolitan area. She is comparing data about the amount of sick leave (in days) taken by each of 98 full-time nurses in each of the two hospitals. The histograms below show the distributions of the two data sets. Each histogram shows the number of days of sick leave taken on the horizontal axis and the number of full-time nurses on the vertical axis. The means and standard deviations for the data sets are also given.