Quick help needed, How electronegativity is related to polarising power?

[Saitama]

Homework Statement

I was studying about electronegativity from a book.
Its written that as polarizing power increases, electronegativity increases.
Also, the electronegativity increases as the s-character in the hybrid orbitals increases.
I don't understand these two statements.
I don't understand how electronegativity is related to polarising power and s-character?

Homework Equations

$\phi$=(Charge on cation)/(Radius of cation)²

The Attempt at a Solution

 

[Saitama]

Bump -_-

 

[Saitama]