A survey was conducted at a local ballroom dance studio asking students if they had ever competed in the following dance categories: Smooth Rhythm - Standard The results were then presented to the owner in the following Venn Diagram. Smooth 7 Rhythm 13 11 12 14 10 Standard 15 5 a How many students competed in Smooth or Rhythm, but not Standard? How many students did not compete in Rhythm? Question Help: Video Submit Question