Text this: Inequalities on the variances of convex functions of random variables

 _    _    _    _              __   __  __    __  
| \  / || | || | ||   ____     \ \\/ // \ \\ / // 
|  \/  || | || | ||  |    \\    \ ` //   \ \/ //  
| .  . || | \\_/ ||  | [] ||     | ||     \  //   
|_|\/|_||  \____//   |  __//     |_||      \//    
`-`  `-`    `---`    |_|`-`      `-`'       `     
                     `-`