We have created three graphs.
 The first graph shows that, out of a sample of 30 students, the majority produces 100150 kgr CO2 per month per person.
 The second graph shows that the majority of students produces 67% CO2 emissions by home energy consumption and 33% by transportation.
 The third graph presents the arithmetic mean of the CO2 emissions percentage, both by home energy consumption (56%) and transportation by car (44%).
Consequently, CO2 emissions by home energy consumption exceed the CO2 emissions by transportation.
