The point of the image was pointing out the faults of taking a large sample and acting as if it is a small sample.
Wouldn't you be able to apply the converse of this -- taking a small sample and acting as if its a large sample -- and apply it to your own situation? By comparing YOU [small] to YOUR BROTHERS [large]?
Beyond that, the image literally had nothing to do with your post. Grow up, kid, and stop acting like you're a detective. You're not. You're a normal lil trigga who lives life like the rest of us. Just breath a lil and have some fun.