My teacher, Mr. Stephens, said that we are all correct.  Jupiter is average.  Earth is average.  Emily is right, too.  None of the planets are average.  

     He said that average could mean different things.  Average could be the one in the middle.  Average could be the one that is there the most.  Average could be different yet.

     Mr. Stephens is teaching about averages now.  Let's listen and learn.