The graphs below illustrate the number of exercises performed each week by employees of two departments of a large company and the number of sick days over the course of a year. Overall, most of the employees work from five to ten hours. Most of the employees were absent for less than five days.
The most noticeable trend was an increase in the percentage of employees in both units who exercised between 5 and 10 hours: 50 percent in Birmingham and about 47 percent in London. Also there is a clear disparity among people who have exercised less than 5 hours. In the first section, 15 percent of employees belong to this category, while in the second section this percentage almost doubles and reaches 35 percent. Similarly, Birmingham had a higher percentage of employees working 10 to 15 hours compared to London, it is only 10 percent. However, the percentage of people who trained for more than 15 hours was almost the same in both branches: 10 percent in Birmingham and 8 percent in London. In addition, for every 1000 employees, 380 people from Birmingham did not leave work due to illness, and in another department the figure is only 158.
There is a significant difference in the number of employees who are absent between London, with 594 and Birmingham with 378. but the percentage of people who have been absent for more than five days in both departments is almost the same.