plumbing is the most skilled trade, the most difficult to learn and the most versatile. As the pay rates above indicate, plumbers make a little more per hour than electricians, but less per year.
An early career Master Electrician with 1-4 years of experience earns an average total compensation (includes tips, bonus, and overtime pay) of $24.75 based on 56 salaries. A mid-career Master Electrician with 5-9 years of experience earns an average total compensation of $25.45 based on 191 salaries.
You can have a successful career as an electrician knowing nothing more than basic arithmetic and, maybe, very elementary algebra. Don't be intimidated by the algebra, it's not as difficult as it looks. The higher you go the more math you will need.