The distribution of molecular kinetic energy at two temperature is as shown in the following graph. 

Which of the following conclusions are correct? 

The number of molecules with energy ${\mathrm{E}}_{\mathrm{a}}$ or greater is proportional to the shaded area for each temperature 

The number of molecules with energy ${\mathrm{E}}_{\mathrm{a}}$ or less is proportional to the shaded area for each temperature 

The number of molecules with energy ${\mathrm{E}}_{\mathrm{a}}$ is the mean of all temperatures 

The graph is not according to the Maxwell-Boltzmann energy distribution law