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

             ___                 ___      ______  
    ___     / _ \\      ___     / _ \\   /_   _// 
   /   ||  | / \ ||    /   ||  | / \ ||  `-| |,-  
  | [] ||  | \_/ ||   | [] ||  | \_/ ||    | ||   
   \__ ||   \___//     \__ ||   \___//     |_||   
    -|_||   `---`       -|_||   `---`      `-`'   
     `-`                 `-`