There is Standard deviation symbol word that can make the technique much easier.
Amazing! I can actually see where I went wrong in a problem! This is amazing for actually learning the math as it shows all of the steps, not just the solution, as someone who really struggles with math this app is a god send for studying.
BEST APP EVER! This app saved me so much that I can't even count. Best math app ever, helps me understand my work now but I'm still gonna use it so I don't overwork my brain ….
Aug 08, 2020