Statement 1: 2,3-dimethyl but-2-ene is more stable than but-2-ene.Statement 2: 2,3-dimethyl but-2-ene possesses 12 α-hydrogen atoms whereas but-2-ene possesses only 6 α-hydrogen atoms and therefore former shows more pronounced hyperconjugation.

The phenomenon of displacement of electrons by conjugative mechanism involving -σ and π-electron is called hyperconjugation. It happens when alkyl groups having at least one of the α-carbon atoms attached to an unsaturated carbon atom is able to release electrons due to delocalization of -σ and π-bond. It is more pronounced as α-H atoms are more in number. Thus, stability of alkenes has been explained in terms  of hyperconjugation.